[R] Regex - subsetting parts of a file name.

[S Ellison]

> I want to keep only the part inside the two points. After lots of headache
> using grep() when trying something like this:
> 
> grep('.(.*?).','df.subject_test.RData',value=T)
> 
> 
> Does anyone have any suggestion ?

gsub("df\\.(.+)\\.RData", "\\1", 'df.subject_test.RData')


Steve E



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