[R] How to access a column by its label?

From: Neil McLeod <neil.a.mcleod_at_gmail.com>
Date: Fri 04 Aug 2006 - 04:44:49 EST

Hi all,

Is there any way to access a column of a data frame by its label (title) rather than its column index? For example, I'd like to be able to select animals[,"weight"] rather than animals[,3], if the third column of the "animals" data frame has the label "weight".

Thank you!

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