R help - Jan 2009 - Can't i provide variables for the select clause of the subset function?

Hi guys,
Have done something like this:---


               #Looping through each set of elements of the correlation
cross product combinations and collecting datatsets for those elements
                for(corr_combs_counter in 1:1)
                {

                    rowval_corr_combs<-corr_combs[corr_combs_counter,]
                    col1<-rowval_corr_combs[1] # i get the pairs firtst col
value like, i1
                    col2<-rowval_corr_combs[2] # i get the pairs second col
value like, i2

                    #getting each element dataset
                    col1val<-subset(item_category_table, select
=",*col1*,")
                    col2val<-subset(item_category_table, select
=",*col2*,")
                    col1val_size<-dim(col1val)
                    #col2val_size<-dim(col2val)
                    print(col1val)
                    print(col2val)
                }
*Can't i use variable names as values of  "select =" ?if i
hardcode the
columnames ,it works fine..*
I keep getting warnings:--
*Error in `[.data.frame`(x, r, vars, drop = drop) :
        undefined columns selected
*
-- 
Thanks
Moumita

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