Split data.frame into groups by column name

Question

I\'m new to R. I have a data frame with column names of such type:

file_001   file_002   block_001   block_002   red_001   red_002 ....etc\'  
  0.05                


        

Answer 1

Thank you lmo, after using your code, it didn't work as I wanted, but I came with a solution thanks to your guidance.

So, in order to divide a Data Frame list:

myDfList <- split.default(dat, sub(x = as.character(names(dat)), pattern = "\\_.*", ""))

hope it'll help people in the future!