Non windows utility for CEL file Binary to Ascii format conversion
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@lakshmanan-iyer-1829
Last seen 9.3 years ago
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@henrik-bengtsson-4333
Last seen 7 months ago
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Hi, there are plans for this in the affxparser package, but it is not among the top 10 priorities so it won't happen too soon. However, since SScore is a R package it should not take much to update the code so it makes use of affxparser instead of whatever it is using now. If you can't do it yourself, try to convince the maintainer of SScore to do it. Cheers Henrik On 8/11/06, Lakshmanan Iyer <laxvid at="" gmail.com=""> wrote: > Hi > The SScore package reads ascii format affymatrix CEL files only and I have > a few binary format CEL files. > Affymatrix provides a tool that can be used to convert the formats but this > is for windows only! > > I am wondering if there is any other utiltiy that allows one to convert the > binary format Affymatrix CEL files to Ascii format. > -Thanks > -Lax > Tufts University School of Medicine > Tufts-New England College of Medicine > Boston > MA > > [[alternative HTML version deleted]] > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor >
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Ben Bolstad ★ 1.2k
@ben-bolstad-1494
Last seen 7.3 years ago
Although this doesn't really directly answer your question .... You might consider prompting the authors of the sscore package to consider building on top of the standard structures and parsers. Based upon the vignette for this package it appears that they already partially do so by making use of ReadAffy() to build an AffyBatch. From what I can tell sscore wants the original CEL files to get the "[OUTLIERS]" section. They could get the "outliers" section from a specified CEL file like this (using the parsers in affyio 1.1.7 or later which is what ReadAffy() is using). myCEL <- read.celfile("/path/to/mycelfilename.CEL") myCEL$OUTLIERS I'm sure there is also a perfectly acceptable way to do it using the affxparser package. Users shouldn't really be forced to have to make manual file format conversions. Instead the parsers should handle this all automatically. Best, Ben On Fri, 2006-08-11 at 22:02 -0400, Lakshmanan Iyer wrote: > Hi > The SScore package reads ascii format affymatrix CEL files only and I have > a few binary format CEL files. > Affymatrix provides a tool that can be used to convert the formats but this > is for windows only! > > I am wondering if there is any other utiltiy that allows one to convert the > binary format Affymatrix CEL files to Ascii format. > -Thanks > -Lax > Tufts University School of Medicine > Tufts-New England College of Medicine > Boston > MA > > [[alternative HTML version deleted]] > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor -- Ben Bolstad <bmb at="" bmbolstad.com=""> http://bmbolstad.com
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And I can only underscore Ben's point: if you are writing a package, please try to use some of the standard tools to read/write files, compute simple summary statistics and use standard data structures. While it may take a little longer initially your code will work better with Bioconductor and you will get most new features more easily than writing them yourself. And of course these other packages have often been widely tested, relieving you of such a need. As always, folks here in Seattle are available to help with such integration. best wishes Robert Ben Bolstad wrote: > Although this doesn't really directly answer your question .... > > You might consider prompting the authors of the sscore package to > consider building on top of the standard structures and parsers. Based > upon the vignette for this package it appears that they already > partially do so by making use of ReadAffy() to build an AffyBatch. From > what I can tell sscore wants the original CEL files to get the > "[OUTLIERS]" section. > > They could get the "outliers" section from a specified CEL file like > this (using the parsers in affyio 1.1.7 or later which is what > ReadAffy() is using). > > myCEL <- read.celfile("/path/to/mycelfilename.CEL") > myCEL$OUTLIERS > > I'm sure there is also a perfectly acceptable way to do it using the > affxparser package. > > > Users shouldn't really be forced to have to make manual file format > conversions. Instead the parsers should handle this all automatically. > > Best, > > Ben > > > > On Fri, 2006-08-11 at 22:02 -0400, Lakshmanan Iyer wrote: >> Hi >> The SScore package reads ascii format affymatrix CEL files only and I have >> a few binary format CEL files. >> Affymatrix provides a tool that can be used to convert the formats but this >> is for windows only! >> >> I am wondering if there is any other utiltiy that allows one to convert the >> binary format Affymatrix CEL files to Ascii format. >> -Thanks >> -Lax >> Tufts University School of Medicine >> Tufts-New England College of Medicine >> Boston >> MA >> >> [[alternative HTML version deleted]] >> >> _______________________________________________ >> Bioconductor mailing list >> Bioconductor at stat.math.ethz.ch >> https://stat.ethz.ch/mailman/listinfo/bioconductor >> Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor -- Robert Gentleman, PhD Program in Computational Biology Division of Public Health Sciences Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N, M2-B876 PO Box 19024 Seattle, Washington 98109-1024 206-667-7700 rgentlem at fhcrc.org
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@michael-driscoll-1714
Last seen 10.3 years ago
> I am wondering if there is any other utiltiy that allows one to convert the > binary format Affymatrix CEL files to Ascii format. Here's a little command-line utility that I've used successfully called CelUtil; I believe it's just a wrapper for a few of Affy's existing API functions... http://ftp.bioinformatics.org/pub/celutil/ regards, Mike Michael Driscoll Bioinformatics, Boston University
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