[R] select rows from data based on a vector of char strings

From: Dirkheld <dirk.bollen_at_soc.kuleuven.be>
Date: Wed, 23 Apr 2008 00:13:23 -0700 (PDT)

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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Received on Wed 23 Apr 2008 - 08:26:18 GMT

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