[BioC] a warining from edgeR

wang peter wng.peter at gmail.com
Sun Jul 29 17:13:06 CEST 2012


I have 35 samples and 54374 genes

such is the coding, do  u think is it ok?



#normalization
dge <- calcNormFactors(dge)

treatment=factor(c(rep('control',6),rep('treated',24),rep('control',5)))
time=factor(c('0h','0h','0h','24h','24h','24h','0h','0h','0h','6h','6h','6h','6h','12h','12h','12h','12h','18h','18h','18h','18h',
             '24h','24h','24h','36h','36h','36h','48h','48h','48h','6h','12h','18h','36h','48h'))
design <- model.matrix(~treatment*time)

dge <- estimateGLMCommonDisp(dge, design)
dge <- estimateGLMTagwiseDisp(dge, design)



Warning message:
In maximizeInterpolant(spline.pts, apl.smooth[j, ]) :
  max iterations exceeded





> sessionInfo()
R version 2.15.1 (2012-06-22)
Platform: x86_64-pc-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=Chinese (Simplified)_People's Republic of China.936
[2] LC_CTYPE=Chinese (Simplified)_People's Republic of China.936
[3] LC_MONETARY=Chinese (Simplified)_People's Republic of China.936
[4] LC_NUMERIC=C
[5] LC_TIME=Chinese (Simplified)_People's Republic of China.936

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] edgeR_2.4.6  limma_3.10.3


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shan gao
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Boyce Thompson Institute
Cornell University
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