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2008 Nov 25
2
basic information defining functions
.... so far i
found most basics in documentations that are around on the web. except
for one thing:
I?d like to define some function, say:
#assume my data matrix contains vectors like data$myColumn1,data
$myColumn2 etc.
getMyColumn <- function (columnid){
x<-data$MyColumn?columnid?[data$indexone=1 & data$index2=5]
return(x)
}
Do I need to use assign or eval first ? I tried to use paste to
combine something like: paste("data$MyColumn",columnid,sep="") which
did not work.
I am happy to get any help with the problem, but also thankful for
some useful link or...