User: Isaac Mehl

gravatar for Isaac Mehl
Isaac Mehl60
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Last seen:
15 years, 5 months ago
Joined:
16 years, 3 months ago
Email:
i****@ucsd.edu

Posts by Isaac Mehl

<prev • 6 results • page 1 of 1 • next >
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loading CEL files in affylmGUI
... i am having trouble opening my .CEL files in affylmGUI. i get an error message: Failed to open file: "Foo.CEL" my best guess is that my .CEL files are all moe430a_2 and this does not have an annotation package. or does this file need to be binary?? afflmGUI 1.1.0 limma 1.6.6 R 1.9.0 BioC 1.4 -isa ...
annotation affylmgui written 15.5 years ago by Isaac Mehl60 • updated 15.5 years ago by James Wettenhall1000
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nature review article
... i think this is a pretty good article about microarrays: http://www.nature.com/cgi- taf/DynaPage.taf?file=/nrg/journal/v5/n3/full/nrg1297_fs.html this brings up a question of mine which is how to best measure the signal to noise ratio. also, how do you decide how many replicates are required for an ...
written 15.8 years ago by Isaac Mehl60 • updated 15.8 years ago by Rafael A. Irizarry2.3k
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installing affy devel package
... recently tried to use ReadAffy fucntion for some CEL files and received: > Data <- ReadAffy() Error in read.affybatch(filenames = filenames, phenoData = phenoData, : The file /cool/delta_microarray/YZ04022501.CEL does not look like a CEL file most likely because the CEL file is binar ...
go affy convert written 15.8 years ago by Isaac Mehl60
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dye swap vs. control channel
... this design brings up a question i always have. is it "better" to do all experiments in one channel (Cy5) and compare every sample to a standard (cy3)? this way you can use less arrays or do more biological replicates. IMHO getting repeated measurements of biological variation is more important t ...
written 16.1 years ago by Isaac Mehl60 • updated 16.1 years ago by A.J. Rossini810
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ArrayVision and limma
... I just received some wonderful help from Jean on reading ArrayVision output files into marrayInput. Now i would like to try and analyze with limma. if i understand correctly there is no way to do this unless source = "ArrayVision" which doesn't exist. Read: https://www.stat.math.ethz.ch/pipermail/ ...
written 16.3 years ago by Isaac Mehl60 • updated 16.3 years ago by Gordon Smyth39k
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arrayVision
... I know that Spot and GenePix files can be loaded directly into marrayInput. Was wondering if any convenient method exists for loading in files from ArrayVision software?? thanks, Isaac Mehl ...
written 16.3 years ago by Isaac Mehl60 • updated 16.3 years ago by Jean Yee Hwa Yang920

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