[R] Assigning variable value as name to cbind column

Ralf B ralf.bierig at gmail.com
Fri Jun 25 07:47:48 CEST 2010


Hi all,

I have this (non-working) script:

dataTest <- data.frame(col1=c(1,2,3))
new.data <- c(1,2)
name <- "test"
n.row <- dim(dataTest)[1]
length(new.data) <- n.row
names(new.data) <- name
cbind(dataTest, name=new.data)
print(dataTest)

and would like to bind the new column 'new.data' to 'dataTest' by
using the value of the variable 'name' as the column name.

The end result should look like this:

      col1     test
1      1          1
2      2          2
3      3          NA


The best I got was that 'name' became the column name but never the
actual value of 'name'. How can i do that?

(This is actually a function that runs many time -- this means a
manual workaround is not feasible).

Ralf



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