Hi,

1) I ran a script say test.R. It ran and terminated with an error. However,
I am not sure where the error occur.

> source("test.R")
Loading required package: tools

Welcome to Bioconductor

  Vignettes contain introductory material. To view, type
  'openVignette()'. To cite Bioconductor, see
  'citation("Biobase")' and for packages 'citation(pkgname)'.
Error: subscript out of bounds
2) I have looked deeply into R, but can't fine multi-level sorts.

3) I have a vector of words, several of which need to be replaced by
different unique words. I am using multi-lines of gsub, is there any elegant
alternative ?

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