Hi,

I haven't check much of what you wrote, so just a blind guess. What about in the function's body before cbind():
names(new.col) <- "more stuff"
?

HTH,
Ivan

Le 6/17/2010 11:09, Ralf B a écrit :
Hi all,

probably a simple problem for you but I am stuck.

This simple function adds columns (with differing length) to data frames:

add.col<- function(df, new.col) {
        n.row<- dim(df)[1]
        length(new.col)<- n.row
        cbind(df, new.col)
}

Now I would like to extend that method. A new parameter 'name' shouild
allow people to pass in a name for that new column. Is that possible
and how can this be achieved?

Example:

myData<- data.frame(c(1,2,3))
add.col(myData, c(5,6,7,8), 'more stuff')

adds a new column named 'more stuff' to the dataframe myData.


Any ideas?

Best,
Ralf

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