[BioC] uppercase & lowercase

[Saroj Mohapatra]

 > apropos("upper")
[1] "toupper"   "upper.tri"
 > toupper("r")
[1] "R"
 > tolower("ABC")
[1] "abc"


D.Enrique ESCOBAR ESPINOZA wrote:
> sorry for the silly question,
> is there any R command for doing lower or upper cases?
>
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