Greetings,
Thanks to everyone for your last reply helping me with my simple data
manipulation questions. There were many great suggestions and I am going
to attend a course on S-Plus for SAS users. I have another issue that I am
working on which I think you will find most trivial. I wish to replace the
contents of one element of a dataframe if a certain condition is met.
Specifically, I would like to replace the element of a filled called Alpha
with a 0 if the element of another field, "Missing" is not null.
I was working with the following statement. The dataframe I was working
with was called test. When the Missing field is not null I would like to
replace the element of Alpha with a numeric value of 0. I am working with
Windows XP and S-Plus 6.2
if (test$Missing!="NA") test$Alpha<-0
I get the following message, basically it is just running on the very first
row and not on the remainder of the dataframe.
Warning messages:
Condition has 55522 elements: only the first used in: if(test$gt5 !=
"NA")
Thanks in advance for you suggestions and time
Joseph Wolfe
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