[R] help with replacing factors

Hi, In the example dataset below - how can I cahnge gray20, to blue # data black - rep(c(black,red),10) gray - rep(c(gray10,gray20),10) black_gray - data.frame(black,gray) # none of this desperate things works # replace(black_gray$gray, gray==gray20,red) #

Re: [R] help with replacing factors

This should work: levels(black_gray$gray)[levels(black_gray$gray)=='gray20'] = 'blue' On Sun, May 24, 2009 at 8:15 AM, Andreas Christoffersen achristoffer...@gmail.com wrote: Hi, In the example dataset below - how can I cahnge gray20, to blue # data black - rep(c(black,red),10) gray -

Re: [R] help with replacing factors

Try storing them as character strings rather than factors: black_gray - data.frame(black, gray, stringsAsFactors = FALSE) Try this to view what you've got: str(black_gray) On Sun, May 24, 2009 at 7:15 AM, Andreas Christoffersen achristoffer...@gmail.com wrote: Hi, In the example dataset

Re: [R] help with replacing factors

Hi Mike and Gabor - thx for the help. It seams I have made a mistake in my original question. While Mike's solutions worked on the example data I provided, I now see my actual data is is(df100_lang$gray) [1] character vector data.frameRowLabels and the solution doesn't