User: libya.tahani

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Libyan Arab Jamahiriya
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Posts by libya.tahani

<prev • 37 results • page 1 of 4 • next >
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Comment: C: Reading CEL files
... Hi  Wolfgang Huber , thank you for your answer . I really did what you  did explain above , but it still giving an error !! > data<-ReadAffy() Error in read.celfile.header(as.character(filenames[[1]])) : Is C:/Users/SONY/Documents/myproject/CEL1/GSM187268.CEL really a CEL file? tried read ...
written 14 months ago by libya.tahani0
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Reading CEL files
... Hi all, I have a problem during I try to read CEL files ReadAffy() , my code was: > data<-ReadAffy() Error in read.celfile.header(as.character(filenames[[1]])) : Is C:/Users/SONY/Documents/myproject/CEL/~$M187272.CEL really a CEL file? tried reading as text, gzipped text, binary, gzipped ...
affy cel written 14 months ago by libya.tahani0 • updated 14 months ago by James W. MacDonald45k
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Comment: C: problem about (design matrix)
... Yes I got it . Thank you so much ...
written 21 months ago by libya.tahani0
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Comment: C: problem about (design matrix)
... Dear  Aaron Lun : I'm  trying to Visualizing the K-means clustering of the same data above, the optimal number of clusters was about 49. I use the following code : > max.data.m<-max(data.m) > min.data.m<-min(data.m) > par(mfrow=c(ceiling(sqrt(k)), ceiling(sqrt(k)))) > for(i ...
written 21 months ago by libya.tahani0
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Comment: C: problem about (design matrix)
... Thank you . ...
written 21 months ago by libya.tahani0
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Comment: C: problem about (design matrix)
... Is there any method for performing the gene set test for KEGG pathways ?? Which function could I use?   ...
written 21 months ago by libya.tahani0
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Comment: C: problem about (design matrix)
... Hi  Aaron Lun  While I was trying to performing the gene set test for KEGG pathways I had  a problem with (globaltest):   > library(hgu133plus2.db) > pathway2probe<-get("hgu133plus2PATH2PROBE") > kegg<-as.list(pathway2probe)   > library(globaltest) > groups<-c(0,0,1,1 ...
written 21 months ago by libya.tahani0
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Comment: C: problem about (design matrix)
... Thanks so much sir,  It's clear to me now . Regards, Tahani.H ...
written 21 months ago by libya.tahani0
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Comment: C: problem about (design matrix)
... Here from the topTable above , is the first column (without a name) mean the names of the genes or ? because I read it in some papers that the first column is the row number in the original data!!! ...
written 21 months ago by libya.tahani0
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Comment: C: problem about (design matrix)
... Thanks a lot dear Aaron Lun for your answer . So I'll use the first approach because I really want to detect DE between CT and CC . ...
written 21 months ago by libya.tahani0

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