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The root cause of this problem was that ygs98 arrays have some probesets consisting of only a single probe and that was not being properly dealt with in the case of the default model. I have fixed this problem in affyPLM version 1.4.1. Ben On Fri, 2005-06-17 at 15:09 +0200, Pedro Bot?as wrote: > Hi, > this is the output when insert Data in R: > > AffyBatch object > size of arrays=534x534 features (17828 kb) > cdf=YG_S98 (9335 affyids) > number of samples=8 > number of genes=9335 > annotation=ygs98 > > The same error appear when I run affylmGUI with PLM normalization. > > Thanks > On Fri, 2005-06-17 at 14:21 +0200, Pedro Bot?as wrote: > > Hi > > When I run Pset<-fitPLM(Data) > > this is the error that appear: > > Error in fitPLM(data) : LAPACK routine DPOTRF gave error code -4 > > How I can solucionated this error? > > thanks > > -- Ben Bolstad <bolstad at="" stat.berkeley.edu=""> http://www.stat.berkeley.edu/~bolstad

thank you so much I will wait this new affyPLM version to carry out the analysis. Pedro Bot?as pbotias at bio.ucm.es http://www.ucm.es/info/gyp/genomica/ ----- Original Message ----- From: "Ben Bolstad" <bolstad@stat.berkeley.edu> To: "Pedro Bot?as" <pbotias at="" bio.ucm.es=""> Cc: <bioconductor at="" stat.math.ethz.ch=""> Sent: Saturday, June 18, 2005 5:00 AM Subject: Re: [BioC] Error in fitPLM The root cause of this problem was that ygs98 arrays have some probesets consisting of only a single probe and that was not being properly dealt with in the case of the default model. I have fixed this problem in affyPLM version 1.4.1. Ben On Fri, 2005-06-17 at 15:09 +0200, Pedro Bot?as wrote: > Hi, > this is the output when insert Data in R: > > AffyBatch object > size of arrays=534x534 features (17828 kb) > cdf=YG_S98 (9335 affyids) > number of samples=8 > number of genes=9335 > annotation=ygs98 > > The same error appear when I run affylmGUI with PLM normalization. > > Thanks > On Fri, 2005-06-17 at 14:21 +0200, Pedro Bot?as wrote: > > Hi > > When I run Pset<-fitPLM(Data) > > this is the error that appear: > > Error in fitPLM(data) : LAPACK routine DPOTRF gave error code -4 > > How I can solucionated this error? > > thanks > > -- Ben Bolstad <bolstad at="" stat.berkeley.edu=""> http://www.stat.berkeley.edu/~bolstad