grep() to search column names of a dataframe

Question

Is there a clearer, simpler, more direct, shorter way to do this:

Where df1 is a dataframe:

names(df1[grep(\"Yield\",names(df1))])

I wa

Answer 1

You could easily define your own function to make it shorter. For instance,

 myfun <- function(x,y) names(y[grep(x, names(y))])

Then, whenever you need it, you use

 myfun("Yield", df1)

It hardly gets any shorter.