[R] Sub-setting a data frame by partial column names?
sarah.b.henderson at gmail.com
Thu Mar 4 07:51:03 CET 2010
Hi all --
I think my Python brain is missing something crucial about string
operations in R, but I cannot figure this out.
I have a large data frame with several groups of similar variables.
Similar variables are named according to their group, and I am now
writing a function to check correlations within groups. I want to
subset the data frame by partial variable name, something along the
lines of this:
partialName <- "XXX"
subsetData <- bigData[, partialName in colnames(bigData)]
Where bigData might have 10 columns named "XXX1", "XXX2" etc.
Many thanks for any thoughts,
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