I have some elements in a vector with extraneous information (e.g. file
name and sample IDs) that I'd like to strip from every element.
For example, I would like "SPI1.S1.str1.P3.sample.tif"
"SPI1.S1.STR2.P1.sample.tif" to read "SPI1.S1.str1.P3" "SPI1.S1.STR2.P1".
Will someone help me with the syntax in gsub? It needs to be something
like gsub("garbage", "everything except garbage" , dataframe,), I think,
but it's the "everything except garbage" that's giving me trouble.
Thanks
*Ben Caldwell*
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