Displaying 1 result from an estimated 1 matches for "p000356".
2006 Nov 08
1
convert factor p000345 to numeric
Dear All,
I am lost about the following. I have got a large dataframe (largeset) with in the first column identification numbers as factors
largeset$ID
p000345
p000356
p000569
etc
--
in order to use them to merge with another dataframe with numerical values (000345, 000356) I want to convert them to numerical.
>as.numeric(as.character(largeset$ID)) gives NA's
>as.numeric(strsplit(as.character(largeset[,1]), "p")) also fails:...