Re: [Factor-talk] Constraints on sequence functions
How about [ sum 100 = ] filter On Jun 4, 2013 9:57 PM, "graham telfer" wrote: > > Maybe happiness! Perhaps the math.combinatorics vocabulary has what I need. > > Sent from my iPad > > On 5 Jun 2013, at 12:45, "graham telfer" wrote: > > > I am trying to define a word; bagof which will collect subsequences of values that satisfy some constraints. > > > > : bagof ( seq -- set-of-sub-sequences ) > >constraints-to-satisfy collect-the-sub-sequences ; > > > > Constraints might be anything but for example at the moment I want to collect the bag of integers for which the sum = some value. I would like to define the summing constraint using something like sum or foldl/r or reduce with map but I can't find a way to halt the summing process midway and test the constraint or repeat the function to build the outputs set. > > -- > How ServiceNow helps IT people transform IT departments: > 1. A cloud service to automate IT design, transition and operations > 2. Dashboards that offer high-level views of enterprise services > 3. A single system of record for all IT processes > http://p.sf.net/sfu/servicenow-d2d-j > ___ > Factor-talk mailing list > Factor-talk@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/factor-talk -- How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j___ Factor-talk mailing list Factor-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/factor-talk
Re: [Factor-talk] Constraints on sequence functions
Maybe happiness! Perhaps the math.combinatorics vocabulary has what I need. Sent from my iPad On 5 Jun 2013, at 12:45, "graham telfer" wrote: > I am trying to define a word; bagof which will collect subsequences of values > that satisfy some constraints. > > : bagof ( seq -- set-of-sub-sequences ) >constraints-to-satisfy collect-the-sub-sequences ; > > Constraints might be anything but for example at the moment I want to collect > the bag of integers for which the sum = some value. I would like to define > the summing constraint using something like sum or foldl/r or reduce with map > but I can't find a way to halt the summing process midway and test the > constraint or repeat the function to build the outputs set. -- How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j ___ Factor-talk mailing list Factor-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/factor-talk
[Factor-talk] Constraints on sequence functions
I am trying to define a word; bagof which will collect subsequences of values that satisfy some constraints. : bagof ( seq -- set-of-sub-sequences ) constraints-to-satisfy collect-the-sub-sequences ; Constraints might be anything but for example at the moment I want to collect the bag of integers for which the sum = some value. I would like to define the summing constraint using something like sum or foldl/r or reduce with map but I can't find a way to halt the summing process midway and test the constraint or repeat the function to build the outputs set. -- How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j ___ Factor-talk mailing list Factor-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/factor-talk
