Error wile reading .CEL files
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Tapan Mehta ▴ 270
@tapan-mehta-165
Last seen 10.1 years ago
Hello, I am trying to read some .CEL files using the ReadAffy() function of the Affy library. I am getting the following error: Data1<-ReadAffy() Error in "intensity<-"(*tmp*, value = c(intensity(cel))) : couldn't find function "exprs<-" Please can somebody help me understand this error. Is there a way (some documentation available )by which I can undertand these errors myself. Thanking you, Tapan Mehta
affy affy • 1.2k views
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@wolfgang-huber-3550
Last seen 5 weeks ago
EMBL European Molecular Biology Laborat…
Hi Tapan, which versions of the packages "Biobase" and "affy" are you using? To understand the error message you're getting, have a look at the function "showMethods", and the definitions of the exprSet and AffyBatch classes in the R subdirectories of the above-mentioned packages. Best - Wolfgang ------------------------------------- Wolfgang Huber Division of Molecular Genome Analysis German Cancer Research Center Heidelberg, Germany Phone: +49 6221 424709 Fax: +49 6221 42524709 Http: www.dkfz.de/mga/whuber ------------------------------------- On Tue, 20 May 2003, Tapan Mehta wrote: > Hello, > > I am trying to read some .CEL files using the > ReadAffy() function of the Affy library. I am getting > the following error: > > Data1<-ReadAffy() > Error in "intensity<-"(*tmp*, value = > c(intensity(cel))) : > couldn't find function "exprs<-" > > Please can somebody help me understand this error. Is > there a way (some documentation > available )by which I can undertand these errors > myself. > > Thanking you, > > Tapan Mehta >
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Hello, Thank you for your quick reply. I am using R1.6.1 and the I am getting a warning saying the following: package affy was built under R version 1.7.0 Do you think it is just a version problem ?It would be nice if you could elaborate how the showMethods will help me in tackling this problem. Tapan Mehta --- w.huber@dkfz-heidelberg.de wrote: > > Hi Tapan, > > which versions of the packages "Biobase" and "affy" > are you using? > > To understand the error message you're getting, have > a look at the > function "showMethods", and the definitions of the > exprSet and AffyBatch > classes in the R subdirectories of the > above-mentioned packages. > > Best - > Wolfgang > > ------------------------------------- > Wolfgang Huber > Division of Molecular Genome Analysis > German Cancer Research Center > Heidelberg, Germany > Phone: +49 6221 424709 > Fax: +49 6221 42524709 > Http: www.dkfz.de/mga/whuber > ------------------------------------- > > > On Tue, 20 May 2003, Tapan Mehta wrote: > > > Hello, > > > > I am trying to read some .CEL files using the > > ReadAffy() function of the Affy library. I am > getting > > the following error: > > > > Data1<-ReadAffy() > > Error in "intensity<-"(*tmp*, value = > > c(intensity(cel))) : > > couldn't find function "exprs<-" > > > > Please can somebody help me understand this error. > Is > > there a way (some documentation > > available )by which I can undertand these errors > > myself. > > > > Thanking you, > > > > Tapan Mehta > > > > _______________________________________________ > Bioconductor mailing list > Bioconductor@stat.math.ethz.ch > https://www.stat.math.ethz.ch/mailman/listinfo/bioconductor
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Hi Tapan, > Do you think it is just a version problem? It could be a version problem of the packages Biobase and affy. Unfortunately you have not answered my question in your mail. Perhaps you are using an "old" Biobase and a more recent ("development") affy? > It would be nice if you could elaborate how the showMethods will help me > in tackling this problem. Before going down this path, please download the most recent developer versions of BOTH affy and Biobase (which are pretty stable and will turn into "release" versions in a very short time from now), and try again. Use getBioC("all", relLevel="devel") with the script getBioC.R from the webpage. Best regards Wolfgang ------------------------------------- Wolfgang Huber Division of Molecular Genome Analysis German Cancer Research Center Heidelberg, Germany Phone: +49 6221 424709 Fax: +49 6221 42524709 Http: www.dkfz.de/mga/whuber ------------------------------------- On Tue, 20 May 2003, Tapan Mehta wrote: > Hello, > > Thank you for your quick reply. I am using R1.6.1 and > the I am getting a warning saying the following: > > package affy was built under R version 1.7.0 > >
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> Thank you for your quick reply. I am using R1.6.1 and > the I am getting a warning saying the following: > package affy was built under R version 1.7.0 If you're using the affy from the development branch (which I believe you are as the affy packages from Release 1.1 are reporting themselves as being built under 1.6.2), then you really should be using R-1.7.0 (to be more specific, you *really* should be using the patched version of R-1.7.0), as that is their target platform. -J
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Hello, Thank you for your help. I have now installed the latest developmental versions. This also does not seem to have solved the problem. I tried to install the development version but the problem still exists. Before I start the ReadAffy() funcion I get a warning saying package affy was built under R version 1.6.2 2: package Biobase was built under R version 1.6.2 Do you think I need to go for complete change in the versions? After the developmental versions failed to remove the error I tried to install the previous release of the affy and the biobase corresopnding to R1.6.1. While the biobase got installed properly , affy did not and gave me the following error. install.packages("C:/Documents and Settings/TMehta/Desktop/Installers/affy_1.0.2.zip", .libPaths()[1], CRAN = NULL) Error in zip.unpack(pkg, lib) : cannot open file C:/PROGRA~1/R/rw1061/library/affy/libs/affy.dll PLease guide me. Thanking you, Tapan Mehta --- Jeff Gentry <jgentry@jimmy.harvard.edu> wrote: > > Thank you for your quick reply. I am using R1.6.1 > and > > the I am getting a warning saying the following: > > package affy was built under R version 1.7.0 > > If you're using the affy from the development branch > (which I believe you > are as the affy packages from Release 1.1 are > reporting themselves as > being built under 1.6.2), then you really should be > using R-1.7.0 (to be > more specific, you *really* should be using the > patched version of > R-1.7.0), as that is their target platform. > > -J > > _______________________________________________ > Bioconductor mailing list > Bioconductor@stat.math.ethz.ch > https://www.stat.math.ethz.ch/mailman/listinfo/bioconductor
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