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romunov/rename.R

Last active February 6, 2016 14:15
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rename column names given a data.frame of old and new values
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rename.R
xy <- data.frame(x = 1:3, y = letters[1:3], z = LETTERS[1:3])
chg <- data.frame(old = colnames(xy), new = toupper(colnames(xy)))
library(plyr)
colnames(xy) <- mapvalues(x = colnames(xy),
from = as.character(chg$old),
to = as.character(chg$new))
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