Re: [R] Error with function lda in package MASS (dimnames not equal?)

2005-06-11 Thread Joshua Gilbert
I fully understand that this is a volunteer project, I'm a Debian user (not a developer... yet). I have read the posting guide, but I forgot the protocol. First offence, won't happen again. Thanks. On 6/11/05, Prof Brian Ripley <[EMAIL PROTECTED]> wrote: > The code will be changed to give a more

Re: [R] Error with function lda in package MASS (dimnames not equal?)

2005-06-11 Thread Prof Brian Ripley
The code will be changed to give a more informative error message in a future release. However, do remember that this is volunteer code, and it is not reasonable to expect volunteers to anticipate that a user will apply it in extremely unlikely circumstances. If you have a suggestion about cod

Re: [R] Error with function lda in package MASS (dimnames not equal?)

2005-06-11 Thread Marc Feldesman
--- Joshua Gilbert <[EMAIL PROTECTED]> wrote: > If this isn't the place to do so, tell me. But, I'd like to petition > to alter the code of lda.default. It seems to me that if you want to alter the code of lda.default, you have everything you need to do so. The code is there, it is GPL'd and y

Re: [R] Error with function lda in package MASS (dimnames not equal?)

2005-06-11 Thread Joshua Gilbert
This is true, they are equal. I hadn't noticed that. Thank you. Now, if lda fails on this given input (equal means), shouldn't we catch it and give a slightly better error message? I've spent a good while going through the debugging process with lda.default. From that perspective it appears that t

Re: [R] Error with function lda in package MASS (dimnames not equal?)

2005-06-10 Thread Prof Brian Ripley
lda.default <- MASS:::lda.default and proceed. Look at the group means of your data: they are identical to machine accuracy. The question has to be `why are you trying to use lda to separate two groups with identical means'? Lda is not protected against that and it is rather unlikely unless you

Re: [R] Error with function lda in package MASS (dimnames not equal?)

2005-06-10 Thread Gabor Grothendieck
On 6/10/05, Joshua Gilbert <[EMAIL PROTECTED]> wrote: > This question appears to have been asked previously, but not answered. > the last response I can find to this previous thread is here: > http://tolstoy.newcastle.edu.au/R/help/04/07/0126.html. The asnwer was > to provide debugging info, not an

[R] Error with function lda in package MASS (dimnames not equal?)

2005-06-10 Thread Joshua Gilbert
This question appears to have been asked previously, but not answered. the last response I can find to this previous thread is here: http://tolstoy.newcastle.edu.au/R/help/04/07/0126.html. The asnwer was to provide debugging info, not an answer. So the problem is that I'm trying to use lda on my d