[rkward-users] [rkward - Help] manipulating data.frame labels via script

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By: fsando

Hi
First off - I am really impressed with what you are doing with rkward - thanks!

I am on 
ubuntu 7.04 
rkward 0.4.2 (kde 3.5.6)
R 2.4.1. 
I breifly tried rkward 0.4.8 but reverted to 0.4.2.

My question regards adding labels to a data.frame via R-script.
I am in the process of moving a large project from SPSS to R/rkward for testing
out rkward in a real setting.
I have imported data as data.frame and the labels as a character vector. It
has more than 1400 variables so I need to be able to add labels to data.frames
via scripts.

I looked into how rkward stores labels and made this loop which apparently works
fine in 0.4.2: Labels are added, and recognized by the editor.

for(i in 1:length(ghdata)){
	attr(ghdata[[i]],".rk.meta") <- list(label = ghlabels[i])
}

For one variable it would look something like this (adding a label to the first
variable in the data.frame):
attr(ghdata[[1]],".rk.meta") <- list(label = "This is a label")

In 0.4.8 I can only add labels in the editor but they disappear when I run this
code.
So my question is whether this is the intended behavior in 0.4.8, if so how
should I change my code so it will also work in the future.


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