Re: [R] Possible bug of QR decomposition in package Matrix

2011-08-04 Thread C6H5NO2
Thank you, Martin. Yes, on my computer (48Gb memory) it also gives a message "caught segfault" as you got. So it is because the matrix size is too large. I apologize for the offence I've caused. 2011/8/4 Martin Maechler : >> C6H5NO2   >>     on Thu, 4 Aug 2011 16:03:54 +0800 writes: > >

Re: [R] Possible bug of QR decomposition in package Matrix

2011-08-04 Thread Martin Maechler
> C6H5NO2 > on Thu, 4 Aug 2011 16:03:54 +0800 writes: > Thank you very much, Josh! > As you suggested, I will contact the developers of "Matrix". > PS, C6 are just initial characters of my email account :-) > Best wishes, > C6 well, as the posting guide (http:/

Re: [R] Possible bug of QR decomposition in package Matrix

2011-08-04 Thread C6H5NO2
Thank you very much, Josh! As you suggested, I will contact the developers of "Matrix". PS, C6 are just initial characters of my email account :-) Best wishes, C6 2011/8/4 Joshua Wiley : > Hi C6 (were C1 - 5 already taken in your family?), > > I downloaded your data and can replicate your prob

Re: [R] Possible bug of QR decomposition in package Matrix

2011-08-03 Thread Joshua Wiley
Hi C6 (were C1 - 5 already taken in your family?), I downloaded your data and can replicate your problem. R ceases responding and terminates. This does not occur with all uses of qr on a dgCMatrix object. I know nothing about sparse matrices, but if you believe this should not be occurring, you