Re: [sage-combinat-devel] combinatorial statistics
I find it quite difficult now to follow this thread, I see the answer to some emails that are not even in the thread... Anyway, I just want to answer to this specific sentence of Nathan: This is only technical issues, nothing more. But I hate that it takes one year to see it fixed. Well, Nathan, you just have to live with it! See, we're all working on a global project depending on lots of people, we all have to wait. The fact that you hate / love something has no impact on my time line whatsoever. And you should understand that you won't make things faster by a) insulting people (as you did last year) and b) giving orders (as you just did in this very thread). 2014-05-27 20:29 GMT+02:00 Nathann Cohen nathann.co...@gmail.com: You asked how you failed me. Are you *REALLY* answering to that question ? O_o Well, I know for a fact that your behaviour on the list has put off people from contributing to sage. Gosh. You are. Certainly me, and others who could have contributed indirectly to my research projects. So that's how you have failed me, since you ask. But that's something I have tolerated for a couple years now. AHAHahahahahahahaahahahh The reason for my email is different: if your attitude persists, it is likely to derail what I am trying to do now along the same lines, when it is actually starting. (eating popcorn) One option is to truly explain to you what it is that I am trying to do. At this point, you are approximately 3 PhD thesis, 7-8 or so research papers and a good 15 talks (but they are recorded) behind in terms of reading, if you want the background material. Gosh. You will never find a hat to fit this head. Yet you send me to yet another thread that I have already read (and participated in). So you noticed. Also, your ticket's description is a hodgepodge of one precise (Graph.to_partition is very badly named) and two large grievances (only there for findstat, find_stat, a project distinct from Sage). I have not made up my mind on the precise, but I know I disagree with the two large grievances, and am more informed than you there. Oh. Well, if this is a problem for you please remove those lines from the ticket, I do not mind. Surely that has no impact on the actual changes brought to Sage ? I like Vincent's approach better than either of ours. Why don't we both change tone and try to contribute constructively in his thread? Which thread ? Must haved missed it O_o PS: Francoise == Francoise Genova, the astronomer who was invited in Edinburgh. Quite frankly, I have no memory for names and faces. Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Yo ! I find it quite difficult now to follow this thread, I see the answer to some emails that are not even in the thread... This is because it was sent to both sage-devel and sage-combinat. After a while somebody anwers to only one group and mess follows. Anyway, I just want to answer to this specific sentence of Nathan: This is only technical issues, nothing more. But I hate that it takes one year to see it fixed. Well, Nathan, you just have to live with it! See, we're all working on a global project depending on lots of people, we all have to wait. The fact that you hate / love something has no impact on my time line whatsoever. This is very very easy on you Don't you feel any responsibility at all for what you put into Sage ? We had a conversation one year ago about ways to fix that, one of which seems to suit you as you said on sage-devel just yesterday. And when several persons tell you that your design has a fault, and a way to solve it, you answer them with a Just live with it ! The fact that you love/hate it has no impact on my time line whatsoever ? And you should understand that you won't make things faster by a) insulting people (as you did last year) and b) giving orders (as you just did in this very thread). I assume that what you call giving orders is this : Our discussion about this is almost 1 year old. If you do not know how to clean this code this month, please remove it. You will have to provide the link yourself if you want to claim that I insult people. I don't claim that it never happens, but I am very interested in the context. Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Since you ask, here is a thread where you have insulted me repeatedly: http://trac.sagemath.org/ticket/16403 Others might think I have asked for it, but that's a different question, and we can have that debate too if you want. But if we are going to have that debate, I would ask that you first send me all links you think are relevant, and that you accept that I send you all links that I find relevant (which might be research papers on the topic of lone individuals' net negative contributions to open source software development, despite producing lots of code. For instance that would include background reading/video watching relevant to the diversity thread). I would also ask that we both spend the time that is needed to actually read through those links and then set a date for the debate to start, and a place that the debate is held. This way everyone can make sure to prepare their own popcorn and know of where to watch. Paul Paul-Olivier Dehaye SNF Professor of Mathematics University of Zurich skype: lokami_lokami (preferred) phone: +41 76 407 57 96 chat: pauloliv...@gmail.com twitter: podehaye freenode irc: pdehaye On Wed, May 28, 2014 at 9:57 AM, Nathann Cohen nathann.co...@gmail.comwrote: Yo ! I find it quite difficult now to follow this thread, I see the answer to some emails that are not even in the thread... This is because it was sent to both sage-devel and sage-combinat. After a while somebody anwers to only one group and mess follows. Anyway, I just want to answer to this specific sentence of Nathan: This is only technical issues, nothing more. But I hate that it takes one year to see it fixed. Well, Nathan, you just have to live with it! See, we're all working on a global project depending on lots of people, we all have to wait. The fact that you hate / love something has no impact on my time line whatsoever. This is very very easy on you Don't you feel any responsibility at all for what you put into Sage ? We had a conversation one year ago about ways to fix that, one of which seems to suit you as you said on sage-devel just yesterday. And when several persons tell you that your design has a fault, and a way to solve it, you answer them with a Just live with it ! The fact that you love/hate it has no impact on my time line whatsoever ? And you should understand that you won't make things faster by a) insulting people (as you did last year) and b) giving orders (as you just did in this very thread). I assume that what you call giving orders is this : Our discussion about this is almost 1 year old. If you do not know how to clean this code this month, please remove it. You will have to provide the link yourself if you want to claim that I insult people. I don't claim that it never happens, but I am very interested in the context. Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Just so you know, I intend to fix the decorator at some point to reduce whatever impact it could have (I learned a bit a more about decorator while at PyCon). Our discussion about this is almost 1 year old. If you do not know how to clean this code this month, please remove it. Also, if I remember correctly we had agreed that Graph.to_partition was to be removed anyway as its meaning was totally unclear. Please open and implement a ticket for that, I will review it. This should have been done one year ago, yet nothing happened since. Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
I agree, something should have been done a year ago. But If you think it should be removed and not improved, please do it yourself. Please open and implement a ticket for that, I will review it. Paul Paul-Olivier Dehaye SNF Professor of Mathematics University of Zurich skype: lokami_lokami (preferred) phone: +41 76 407 57 96 chat: pauloliv...@gmail.com twitter: podehaye freenode irc: pdehaye On Tue, May 27, 2014 at 11:39 AM, Nathann Cohen nathann.co...@gmail.comwrote: Just so you know, I intend to fix the decorator at some point to reduce whatever impact it could have (I learned a bit a more about decorator while at PyCon). Our discussion about this is almost 1 year old. If you do not know how to clean this code this month, please remove it. Also, if I remember correctly we had agreed that Graph.to_partition was to be removed anyway as its meaning was totally unclear. Please open and implement a ticket for that, I will review it. This should have been done one year ago, yet nothing happened since. Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Yo ! I agree, something should have been done a year ago. Cool ! But If you think it should be removed and not improved, please do it yourself. If think that If this thing, which was debated one year ago, is not to be fixed SOON, then we should get rid of it. We are already hosting code which is only useful to a couple of persons and not to Sage, we definitely should not host it forever if they abandon it ! Please open and implement a ticket for that, I will review it. I wrote the following ticket to remove Graph.to_partition. http://trac.sagemath.org/ticket/16403 Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Sorry Nathann, I don't take orders. If you want to open tickets, just do so. I don't think a ticket removing the map decorator all together would be positively reviewed right now. If you really want to know my time frame, I *intend* to work on this decorator to make it better this summer. If someone else wants to have a look on how it could be improved and open a ticket with suggestions, they're welcome. The decorator as it is is not major issue or even a bug, it's been positively reviewed years ago. The way I remember, nothing was really agreed at the end of this endless discussion last year. If you want to open a ticket to remove graph.to_partition, just do so. 2014-05-27 11:39 GMT+02:00 Nathann Cohen nathann.co...@gmail.com: Just so you know, I intend to fix the decorator at some point to reduce whatever impact it could have (I learned a bit a more about decorator while at PyCon). Our discussion about this is almost 1 year old. If you do not know how to clean this code this month, please remove it. Also, if I remember correctly we had agreed that Graph.to_partition was to be removed anyway as its meaning was totally unclear. Please open and implement a ticket for that, I will review it. This should have been done one year ago, yet nothing happened since. Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Sorry Nathann, I don't take orders. No but you should feel responsible for the mess you add to Sage. If you want to open tickets, just do so. I don't think a ticket removing the map decorator all together would be positively reviewed right now. If you really want to know my time frame, I *intend* to work on this decorator to make it better this summer. If someone else wants to have a look on how it could be improved and open a ticket with suggestions, they're welcome. The decorator as it is is not major issue or even a bug, it's been positively reviewed years ago. Well, a positive review in Sage is just two persons agreeing together. Perhaps I could just as a friend of mine who agrees that find_start should be totally remved from Sage and let him give a positive review to my ticket ? That's why we discuss stuff, and that's why you should feel responsible when people are against what you implement. The way I remember, nothing was really agreed at the end of this endless discussion last year. If you want to open a ticket to remove graph.to_partition, just do so. http://trac.sagemath.org/ticket/16403 Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
thanks for the fast reply -- but I need statistics, not maps. I..e, I'd like to have a list of all methods applying to permutations that return a number... I don't think there is anything like that for statistics, maybe the sign that we do need more semantic into Sage? Is it correct that findstat implements more statistics and more maps? Is it possible to use findstat from within sage? The maps in Findstat come from Sage. If a map is not needed in Sage, then we add it to our own Sage version but it's quite rare (and it's only silly maps that we need for technical reasons) But there are indeed more statistics, you can browse through them here: http://www.findstat.org/StatisticsDatabase Sadly, there is not yet a way to access FindStat through Sage. If you're interested, we can add you to our github project so that you can describe your usecase, it would help us build our API the right way. Martin -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Am Dienstag, 27. Mai 2014 12:10:22 UTC+2 schrieb Viviane Pons: thanks for the fast reply -- but I need statistics, not maps. I..e, I'd like to have a list of all methods applying to permutations that return a number... I don't think there is anything like that for statistics, maybe the sign that we do need more semantic into Sage? well, there was a decorator for statistics before the move to gitI have code that used it. Martin -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
well, there was a decorator for statistics before the move to gitI have code that used it. sorry, Martin, that we removed it again! But you see that Nathann keeps arguing it is not useful to people (I am not going to participate in that discussion -- I want to do math and I don't kill my time *again* in such a discussion), so I am not going to put it back in. But feel free to use it locally, you can either just take the old code from an old version of Sage, or I can send you instructions of how to do it. Cheers, Christian -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
I would be happy to review any ticket in this direction. Paul Paul-Olivier Dehaye SNF Professor of Mathematics University of Zurich skype: lokami_lokami (preferred) phone: +41 76 407 57 96 chat: pauloliv...@gmail.com twitter: podehaye freenode irc: pdehaye On Tue, May 27, 2014 at 5:54 PM, Christian Stump christian.st...@gmail.comwrote: well, there was a decorator for statistics before the move to gitI have code that used it. sorry, Martin, that we removed it again! But you see that Nathann keeps arguing it is not useful to people (I am not going to participate in that discussion -- I want to do math and I don't kill my time *again* in such a discussion), so I am not going to put it back in. But feel free to use it locally, you can either just take the old code from an old version of Sage, or I can send you instructions of how to do it. Cheers, Christian -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Well, a positive review in Sage is just two persons agreeing together. Maybe you nailed exactly where the problem is. The problem might very well be that the person that ends up agreeing on the ticket review at the end is the only one that stuck around. I think that is a strong possibility. Also part of the problem is that everyone else either: - thinks they should be doing research instead (which is shortsighted and toxic to really bring sage to another level, in my view); - doesn't want to argue because they find it very unpleasant. (these two are of course not mutually exclusive) Due to the unfortunate absence of professional programmers to write and review our code and of mature professional mathematicians to establish clear strategic decisions for sage, we should actually as a research community be welcoming of diverse (already-coded) ideas, as long as they are not disruptive to other people's research objectives (the burden should be to prove that they disrupt). And even if there were, the burden should be for anyone to _improve_ code that is considered useful by them, not remove. This is because we have to be mindful that we are building mathematics software, and that as a consequence no individual (even a mathematician) will ever be able to comprehend the whole complexity that is being integrated into the software. Yet we want to provide as consistent of an experience as possible to cover various use cases. Fortunately, we can inform ourselves, learn what others are doing, take classes, go to conferences, and build up joint research projects with other disciplines. In light of this, please reflect on the amount of mathematics you know yourself. Do you know about L-functions? Have you tried to learn about them in Edinburgh or when I went to Paris to explain it to Nicolas and Florent? Do you know about category theory and what Nicolas is trying to do? (you have said several times explicitly on the list that you were not interested, but it is not clear to me that you understand it. One thing is sure: that you feel qualified to comment on it). It might be that individuals feel that they understand what findstat is doing but are failing to understand the broader context, which might explain why projects like findstat, LMFDB or even sage-combinat have unnecessarily complicated relationships with the sage core itself, and why some of my contributions end up in the LMFDB code and not sage itself. Also, have you talked to Francoise and the Logilab people at the Edinburgh workshop, people who are professional developing software in the sciences to handle research results? Do you know about semantic web technologies and things like that, especially as it is being applied to mathematics? Anyways, even if you don't know about all those things, don't worry: it is actually possible, for someone with an open mind, to learn those things or at least a sufficiently general picture. Paul Perhaps I could just as a friend of mine who agrees that find_start should be totally remved from Sage and let him give a positive review to my ticket ? That's why we discuss stuff, and that's why you should feel responsible when people are against what you implement. The way I remember, nothing was really agreed at the end of this endless discussion last year. If you want to open a ticket to remove graph.to_partition, just do so. http://trac.sagemath.org/ticket/16403 Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Hello ! Due to the unfortunate absence of professional programmers to write and review our code Come on, that is our job. and of mature professional mathematicians to establish clear strategic decisions for sage, we should actually as a research community be welcoming of diverse (already-coded) ideas, as long as they are not disruptive to other people's research objectives (the burden should be to prove that they disrupt). We are grown ups. If we think at some point that something should be undone, the discussion is on whether it should be undone. Not on whether we are allowed to undo things. We deprecate functions at every release, and that's healthy. And even if there were, the burden should be for anyone to _improve_ code that is considered useful by them, not remove. I said remove because waiting for one year to do something and still say I will do it later is not a good sign. Then, I remember saying in one long email that everything in FindStat seemed very cool and useful, but that we had no reason to host their code if it is not useful in Sage. Then, if it is useful in Sage, I believe that it should be made non-intrusive, i.e. the decorator should return the very function it received and not leave anything in between. This is only technical issues, nothing more. But I hate that it takes one year to see it fixed. In light of this, please reflect on the amount of mathematics you know yourself. I just read your email, and so before you begin your long enumeration let me agree with you : I am an idiot, and I know nothing. I just smiled when I read your do you know anything about categories, because funnily I am reviewing #16405 right now and wrote a couple of category tickets recently. One thing is sure: that you feel qualified to comment on it). And clearly I am wrong. Do me a favor, read this and tell me why it is made invalid by the obvious fact that I don't understand anything about categories : https://groups.google.com/d/msg/sage-combinat-devel/hupt_5776j0/KtbiHpTKXrUJ It might be that individuals feel that they understand what findstat is doing but are failing to understand the broader context, which might explain why projects like findstat, LMFDB or even sage-combinat have unnecessarily complicated relationships with the sage core itself, and why some of my contributions end up in the LMFDB code and not sage itself. Some individuals like me are bound to miss stuff forever, accept it, the world is filled with us idiots. Okay let's stop this game : all I have against FindStat is the useless methods they add (like .to_partition) and the intrusive decorator. Nothing else. Also, have you talked to Francoise and the Logilab people at the Edinburgh workshop, people who are professional developing software in the sciences to handle research results? No, I never talked to anybody named Francoise. I never talked to any JIm either. Do you know about semantic web technologies and things like that, especially as it is being applied to mathematics? Dear God, how have I failed you ? No, no I don't ! Anyways, even if you don't know about all those things, don't worry: it is actually possible, for someone with an open mind, to learn those things or at least a sufficiently general picture. Bless the Lord. Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Besides: is it possible to run a more exhaustive FindStat search? If I understand correctly, FindStat limits itself to 3 maps, right? No -- you can change the 3 into a 5 at most. And the at most is just a limit to not run for too long, so if you are willing to wait overnight, we can also do 6 or maybe 7. (Am I getting your question right, now?) Cheers, Christian -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
One use case for statistics which comes to my mind immediately is to provide answers to Just to make sure : I *NEVER* said that statistics on combinatorial objects were useless, did I ? My objections are related to the code that is included in Sage, and how it is written. http://mathoverflow.net/questions/101265/a-list-of-symmetric-statistics/101670#101670 although I have to admit that a) I asked the question myself and b) I did not give any deep reason to ask the question. Does not matter. I mean, the job of many of us is to do maths. We just need this information for our job. The whole of OEIS is useful, and a good thing, even if you find a couple of sequences there that are a bit far-fetched :-P Another use case (again for statistics) is that from time to time I encounter a set of families of objects (eg 0-1 fiillings of Ferrers diagrams of a given shape) with a natural statistic (eg. length of longest north-east chain) and then I'd like to run a brute force search whether I can find a well-known statistic equidistributed with my statistic when restricting to some family (eg., a particular shape). Statistics *ARE* useful. And we can query the OEIS from Sage, and this is cool too. Besides: is it possible to run a more exhaustive FindStat search? If I understand correctly, FindStat limits itself to 3 maps, right? I guess they can. But you see, FindStat is not exactly part of Sage, and for FindStat question the FindStat guys can answer, for they run this code, sage developpers have no hand on it :-) Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Besides: is it possible to run a more exhaustive FindStat search? If I understand correctly, FindStat limits itself to 3 maps, right? No -- you can change the 3 into a 5 at most. And the at most is just a limit to not run for too long, so if you are willing to wait overnight, we can also do 6 or maybe 7. Wonderful! (Am I getting your question right, now?) Yes! So, if I want to perform such a query, I should send the code generating the statistic to you, right? Another question: I would like to search for a statistic (on permutations, but the question applies in general) that satisfies addtitional structural constraints (eg., it should be invariant under conjugation with the long cycle). Is such a search also possible? I must say that I'd love to see the findstat search engine as part of sage. All the best, Martin -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Hello !!! I must say that I'd love to see the findstat search engine as part of sage. I would love it too. Querying the findstat database from within Sage is clearly a good thing. Nathann -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Am Dienstag, 27. Mai 2014 20:56:58 UTC+2 schrieb Nathann Cohen: Hello !!! I must say that I'd love to see the findstat search engine as part of sage. I would love it too. Querying the findstat database from within Sage is clearly a good thing. But only half of the story. Martin -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Another question: I would like to search for a statistic (on permutations, but the question applies in general) that satisfies addtitional structural constraints (eg., it should be invariant under conjugation with the long cycle). Is such a search also possible? The obvious solution is to take the FindStat output and check if the given outputted statistic satisfies your constraints. I currently cannot think of any more sophisticated things to do there, but maybe you have something in mind... -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Yes! So, if I want to perform such a query, I should send the code generating the statistic to you, right? How urgent is it? -- I could try and see if the server explodes if I increase the 5 to a 7. That way, you can keep playing there. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
How urgent is it? -- I could try and see if the server explodes if I increase the 5 to a 7. That way, you can keep playing there. I'll try with 5 first! The reason I did not notice is that you don't get to choose if you hit search for distribution when looking at an entry in the statistics database. So I'll copy the data from there and then play. I guess this is getting slightly off topic now, so I'll continue in private, unless someone objects... Many thanks, Martin -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
I guess this is getting slightly off topic now, so I'll continue in private, unless someone objects... For anything related to FindStat, you can write to i...@findstat.org :) Many thanks, Martin -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
I am in need of browsing through all the statistics on permutations and derangements, and wanted to use combinatorial_statistics_in_class, but I can't find it anymore... What should I be using? Hi Martin -- sage: from sage.combinat.combinatorial_map import combinatorial_maps_in_class sage: combinatorial_maps_in_class(type(Permutation([]))) [Combinatorial map: complement, Combinatorial map: permutation poset, Combinatorial map: Binary search tree (left to right), Combinatorial map: major-index to inversion-number bijection, Combinatorial map: Robinson-Schensted tableau shape, Combinatorial map: inverse, Combinatorial map: Robinson-Schensted recording tableau, Combinatorial map: foata_bijection, Combinatorial map: descent composition, Combinatorial map: Robinson-Schensted insertion tableau, Combinatorial map: to alternating sign matrix, Combinatorial map: Increasing tree, Combinatorial map: Simion-Schmidt map, Combinatorial map: reverse, Combinatorial map: inversion-number to major-index bijection] Let me add that I was thinking of opening a ticket to remove combinatorial maps from Sage again (in the medium time future) simply because the negative comments about it were louder (and I am currently not in the position to be able to spend much time on stuff I don't need for my research). So if you have some use cases for combinatorial maps, please write about it so such cases are also visible. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Hi Christian! thanks for the fast reply -- but I need statistics, not maps. I..e, I'd like to have a list of all methods applying to permutations that return a number... Is it correct that findstat implements more statistics and more maps? Is it possible to use findstat from within sage? Martin -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Hi Christian, On Mon, May 26, 2014 at 09:08:14AM +0200, Christian Stump wrote: Let me add that I was thinking of opening a ticket to remove combinatorial maps from Sage again (in the medium time future) simply because the negative comments about it were louder (and I am currently not in the position to be able to spend much time on stuff I don't need for my research). I also won't spend time on arguing about this. Let me just recall my personal position, for whatever it's worth. I like having such semantic information in the code, and I am fine with having it even if we don't yet have a strong use case within Sage. The only prerequisites are: - Not having an impact on performance (IIRC that's the case with combinatorial maps) - Not adding functions in the code unless they are actually useful in Sage and have a clear mathematical meaning. So if you have some use cases for combinatorial maps, please write about it so such cases are also visible. +1 By the way: I second being able to programmatically search for combinatorial statistics, be it through a remote call to findstat.org, or by running locally a findstat search engine. Cheers, Nicolas -- Nicolas M. Thiéry Isil nthi...@users.sf.net http://Nicolas.Thiery.name/ -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
thanks for the fast reply -- but I need statistics, not maps. I..e, I'd like
to have a list of all methods applying to permutations that return a number...
sorry for not properly reading your request! We had, similar to the
@combinatorial_maps decorator, an @combinatorial_statistic decorator
at some point.
But I don't think this semantic information is currently available
since we stopped the use case in FindStat and then also stopped
implementing it in sage.
Is it correct that findstat implements more statistics and more maps? Is it
possible to use findstat from within sage?
That's correct for maps.
But it is not correct for statistics. Indeed, there is no statistic at
all implemented in FindStat, we only store statistics as their values
(though in a human readable field, there is the option to put (any
sort of) code (most often Sage, but we also have Mathematica code) to
generate that data, see www.findstat.org/St000193/ for a statistic
with code that is not directly in Sage). The reason is that we cannot
generate the data on the fly since that's much too slow (even for
simple statistics) to be usable in FindStat.
So you are very welcome to suggest a way of using the fairly flexible
code field of a statistic to make it machine readable (only if this
is desired for a given statistic), we will then find a way of making
that info available in Sage.
A first naive example could be:
The code field for the above statistic is
{{{
for i in [1..5]:
for a in AlternatingSignMatrices(i):
print [list(row) for row in
a.to_matrix()],=,a.transpose().to_monotone_triangle()[-1][0]
}}}
so we have no chance to actually turn that *automatically* into a
statistic. But if we would introduce a convention like use a
decorator to tell that sth. is code to generate a statistic, we could
have that code starting with @combinatorial_statistic is taken to be
a statistic like
{{{
@combinatorial_statistic
def my_stat(ASM):
return a.to_matrix()],=,a.transpose().to_monotone_triangle()[-1][0]
for i in [1..5]:
for a in AlternatingSignMatrices(i):
print [list(row) for row in a.to_matrix()],=,my_stat(a)
}}}
can be parsed and the statistic would be stored semantically as a statistic.
Finally, we could have a Sage interface that allows to check for all
stats for a combinatorial collection (say Permutations), or to get a
particular statistic to use it in sage.
But that's a lot of work and we would need some volunteer to actually do it.
Cheers,
Christian
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Re: [sage-combinat-devel] combinatorial statistics
Just so you know, I intend to fix the decorator at some point to reduce whatever impact it could have (I learned a bit a more about decorator while at PyCon). We could also think of adding more semantic information to make the usecase for sage more obvious (I really do think there is one). Also, the functionality you're talking about to access FindStat through Sage is definitely on our list (and on mine specifically). It would mean some work on our side as we don't have any API yet to access the database without the web interface. Cheers Viviane 2014-05-26 10:03 GMT+02:00 Nicolas M. Thiery nicolas.thi...@u-psud.fr: Hi Christian, On Mon, May 26, 2014 at 09:08:14AM +0200, Christian Stump wrote: Let me add that I was thinking of opening a ticket to remove combinatorial maps from Sage again (in the medium time future) simply because the negative comments about it were louder (and I am currently not in the position to be able to spend much time on stuff I don't need for my research). I also won't spend time on arguing about this. Let me just recall my personal position, for whatever it's worth. I like having such semantic information in the code, and I am fine with having it even if we don't yet have a strong use case within Sage. The only prerequisites are: - Not having an impact on performance (IIRC that's the case with combinatorial maps) - Not adding functions in the code unless they are actually useful in Sage and have a clear mathematical meaning. So if you have some use cases for combinatorial maps, please write about it so such cases are also visible. +1 By the way: I second being able to programmatically search for combinatorial statistics, be it through a remote call to findstat.org, or by running locally a findstat search engine. Cheers, Nicolas -- Nicolas M. Thiéry Isil nthi...@users.sf.net http://Nicolas.Thiery.name/ -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
Re: [sage-combinat-devel] combinatorial statistics
Christian Stump christian.st...@gmail.com writes: Hi Martin, one patch per class? that's completely up to you, I guess Another question: is it important to keep the number of statistics small? I.e., if a statistic can be constructed via a map, is it better *not* to implement it? (Eg., saliances and right-to-left-minima.) I usually do implement them, and add it then to the black list of the combinatorial map. Otherwise we would even not have maj or inv since the bijection sending maj to inv is also implemented. OK. Although, I have to admit that I do not understand the intention of the black list entirely yet... I have another question: as you know, I hacked together a small script to print out the (implemented and decorated :-) pairs of statistics with symmetric distribution. A priori, there were *very* few. So I modified the script slightly to also apply the combinatorial maps. This made the list much longer, but not much more interesting. Namely, many hits were of the form (map1 stat, map2 stat) ~ (map2 stat, map1 stat) which is very likely (i.e., apart from interesting exceptions) just saying that map1 map2^-1 map1 map2^-1 = id (I suppose that the definition of combinatorial map in sage is such that it is bijective, right?) I would like to filter these mappings. I think, an easy way to do so would be to store with each map also a list of maps which commute with it, but I am not sure how to organise this in an intelligent way. Any ideas? All the best, Martin -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] combinatorial statistics
sage -combinat qselect Thanks, I accidentally did sage -qselect instead... I pushed the changes. Best, Christian -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To view this discussion on the web visit https://groups.google.com/d/msg/sage-combinat-devel/-/S9XtFMU0UZ0J. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] combinatorial statistics
Hi Martin, one patch per class? that's completely up to you, I guess Another question: is it important to keep the number of statistics small? I.e., if a statistic can be constructed via a map, is it better *not* to implement it? (Eg., saliances and right-to-left-minima.) I usually do implement them, and add it then to the black list of the combinatorial map. Otherwise we would even not have maj or inv since the bijection sending maj to inv is also implemented. How about aliases? (I would like to have right-to-left-maxima be an alternative name to saliances...) we already use them some times. only the decorated one will appear, not the alias. best, christian -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] combinatorial statistics
Hello Christian, I just pushed a change to composition.py which breaks your patch. Since you are actively working on this, I decided not to rebase your patch but instead disabled it. It is a very easy rebase in the import statements. Also, I disabled Mike's patch, which depends on yours. Please re-enable it as well when you enable yours: pp_function_for_dyck_words-mz.patch Franco -- On Thu, Jul 5, 2012 at 4:40 AM, Christian Stump christian.st...@gmail.com wrote: Hi Martin, one patch per class? that's completely up to you, I guess Another question: is it important to keep the number of statistics small? I.e., if a statistic can be constructed via a map, is it better *not* to implement it? (Eg., saliances and right-to-left-minima.) I usually do implement them, and add it then to the black list of the combinatorial map. Otherwise we would even not have maj or inv since the bijection sending maj to inv is also implemented. How about aliases? (I would like to have right-to-left-maxima be an alternative name to saliances...) we already use them some times. only the decorated one will appear, not the alias. best, christian -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] combinatorial statistics
I just pushed a change to composition.py which breaks your patch. I rebased the patch and also enabled Mike's patch again. But now, I get the following error message after applying the queue, so I don't push the changed... Any idea (I am using 5.0)? -- sage: Building and installing modified Sage library files. Installing c_lib scons: `install' is up to date. Updating Cython code Building modified file sage/categories/action.pyx. Building modified file sage/categories/category_singleton.pyx. Building modified file sage/categories/morphism.pyx. Building modified file sage/categories/examples/semigroups_cython.pyx. Building modified file sage/structure/list_clone.pyx. Building modified file sage/structure/list_clone_demo.pyx. Building sage/structure/list_clone_timings_cy.pyx because it depends on sage/structure/list_clone.pxd. Building modified file sage/sets/finite_set_map_cy.pyx. Building modified file sage/combinat/dict_addition.pyx. Traceback (most recent call last): File setup.py, line 830, in module queue = compile_command_list(ext_modules, deps) File setup.py, line 790, in compile_command_list dep_file, dep_time = deps.newest_dep(f,m) File setup.py, line 697, in newest_dep for f in self.all_deps(filename, ext_module): File setup.py, line 678, in all_deps for f in self.immediate_deps(filename, ext_module): File setup.py, line 660, in immediate_deps self._deps[filename] = self.parse_deps(filename, ext_module) File setup.py, line 648, in parse_deps raise IOError, msg IOError: could not find dependency sage/combinat/enumeration_mod_permgroup.pxd included in sage/combinat/invariant_ring_perm_gps/invariant_cython.pyx. Error installing modified sage library code. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] combinatorial statistics
On Thu, Jul 5, 2012 at 12:49 PM, Christian Stump christian.st...@gmail.com wrote: I just pushed a change to composition.py which breaks your patch. I rebased the patch and also enabled Mike's patch again. But now, I get the following error message after applying the queue, so I don't push the changed... Any idea (I am using 5.0)? -- sage: Building and installing modified Sage library files. Installing c_lib scons: `install' is up to date. Updating Cython code Building modified file sage/categories/action.pyx. Building modified file sage/categories/category_singleton.pyx. Building modified file sage/categories/morphism.pyx. Building modified file sage/categories/examples/semigroups_cython.pyx. Building modified file sage/structure/list_clone.pyx. Building modified file sage/structure/list_clone_demo.pyx. Building sage/structure/list_clone_timings_cy.pyx because it depends on sage/structure/list_clone.pxd. Building modified file sage/sets/finite_set_map_cy.pyx. Building modified file sage/combinat/dict_addition.pyx. Traceback (most recent call last): File setup.py, line 830, in module queue = compile_command_list(ext_modules, deps) File setup.py, line 790, in compile_command_list dep_file, dep_time = deps.newest_dep(f,m) File setup.py, line 697, in newest_dep for f in self.all_deps(filename, ext_module): File setup.py, line 678, in all_deps for f in self.immediate_deps(filename, ext_module): File setup.py, line 660, in immediate_deps self._deps[filename] = self.parse_deps(filename, ext_module) File setup.py, line 648, in parse_deps raise IOError, msg IOError: could not find dependency sage/combinat/enumeration_mod_permgroup.pxd included in sage/combinat/invariant_ring_perm_gps/invariant_cython.pyx. Error installing modified sage library code. I think you have to reset your guards. Option 1: sage -combinat qselect Option 2: sage -combinat update Franco -- -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] combinatorial statistics
Hi Martin. Eg., for personal enjoyment, I just added decorators to number_of_crossings and number_of_nestings in perfect matchings. (Christian: it works now, I made a stupid mistake) good - any comments are welcome. I see that there is a patch concrete_combinatorial_statisics_and_maps_cs. Should I send patches of this patch to Christian, should I create a new one (if so, one for each class?), or should I keep this for personal enjoyment? The decorator is implemented in combinatorial_statistics_and_maps_decorator-cs.patch, the concrete examples in the one right after. Please don't modify the later (concrete_combinatorial_statisics_and_maps_cs.patch) since I am again and again changing it. But you cad add another patch whereever you want after the first patch and use the decorators. -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] combinatorial statistics
Christian Stump christian.st...@gmail.com writes: The decorator is implemented in combinatorial_statistics_and_maps_decorator-cs.patch, the concrete examples in the one right after. Please don't modify the later (concrete_combinatorial_statisics_and_maps_cs.patch) since I am again and again changing it. OK! But you cad add another patch whereever you want after the first patch and use the decorators. one patch per class? Another question: is it important to keep the number of statistics small? I.e., if a statistic can be constructed via a map, is it better *not* to implement it? (Eg., saliances and right-to-left-minima.) How about aliases? (I would like to have right-to-left-maxima be an alternative name to saliances...) Martin -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
