Hello,

Thank you in advance for answering my question!!

I encountered an error when I intended to draw a heatmap based on the output from limma package. I selected those genes with low adjusted p values, and use their expression information to draw a heatmap. It turned out that the exprs function does not work. Really do not know how to solve this. Please help me out! Thanks a lot!

> selected  <- p.adjust(contrasts.fit$p.value[, 1]) <0.05
> selectgenes <- y[selected,]
> heatmap(exprs(selectgenes))
Error in (function (classes, fdef, mtable)  :
  unable to find an inherited method for function 'exprs' for signature '"EList"'

> exprs(selectgenes)
Error in (function (classes, fdef, mtable)  :
  unable to find an inherited method for function 'exprs' for signature '"EList"'

Thanks,
Xiayu

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