[R] select rows from data based on a vector of char strings
Dirkheld
dirk.bollen at soc.kuleuven.be
Wed Apr 23 09:13:23 CEST 2008
Hi,
I have loaded a dataset in R :
data =
label freq1 freq2
news 54 35
fun 37 21
milk 19 7
food 3 3
.... etc
And I have a vector
flist<-c("fun","food")
Now I want to use the vector 'flist' for selecting these values from 'data'
so that I get the following dataset :
label freq1 freq2
fun 37 21
food 3 3
When I do 'data$label==flist[1]' I get 'F T F F', so it works for one item
in the char vector flist.
But, when I do 'data$label==flist' I get 'F F F F' while I expected 'F T F
T'. It seems that I can't perform this action with a vector of charstrings?
Is there an other way to do so?
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