search for: esapply

Displaying 2 results from an estimated 2 matches for "esapply".

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2008 Nov 15
1
unable to view vignette in R
...6: annotate - Using Affymetrix Probe Level Data 7: annotate - Using Data Packages 8: annotate - Using the homology package 9: AnnotationDbi - AnnotationDbi 10: AnnotationDbi - SQLForge 11: Biobase - An introduction to Biobase and ExpressionSets 12: Biobase - Bioconductor Overview 13: Biobase - esApply Introduction 14: Biobase - Notes for eSet developers 15: Biobase - Notes for writing introductory 'how to' documents 16: Biobase - quick views of eSet instances 17: geneplotter - How to assemble a chromLocation object 18: geneplotter - Visualization of Microarray Data 19: xtable - xtable Ga...
2005 Oct 07
0
Differentially expressed gene list
...M on my array data(siggenes)I have some problems in retrieving the separate lists of up regulated and down regulated genes. When I write: fold<-function(x){ gruppi<-split(x,controllo) geni1<-abs(mean(gruppi[[2]])-mean(gruppi[[1]])) return(geni1) } fold<-esApply(expr.contr.tratt.4,1,fold) filtro.geni.4_prova<-expr.contr.tratt.4[which(fold>=1),] filtro.geni.4_prova everything is working well and I can obtain the correct HTML output,but if I write the same using fold change<1 to obtain downregulated genes,I have the following warning message: #...