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bouat
2006 Jul 31
2
if function and apply
Runninn R.2.3.1 Windows XP
I have a dataset just imported from SPSS. It has any
number of 99's as missing data and it looks like the
next dataset will have custom missing codes. I have
abouat 120 variables and an N of 2000.
"I think" thatI would like to apply a function to the
data.frame (or to a matrix of the data if needed) to
recode all the 99's to NA. I thought that I could
adapt an example from the list using "apply" but with
no success.
Is there a dece...