What does var represent? Are your data currently arranged tall, or wide?
(It's preferable not to use plain text on the list).
Jeremy
On 13/04/07, kdlop1@comcast.net <kdlop1@comcast.net> wrote:
I am doing an analysis of a monthly survey. Some of the respondents
answered the dependent variable question every time it was administered,
others answered some of the months and others never answered. I would like
to compare the group that answered the question at least once with the group
that never answered.
If I use the syntax:
drop if var==q.
I am left with all of the unique IDs who answered the question at least
once.
If i use the syntax:
keep if var==q.
I get all of the unique IDs who never answered and those that occasionally
answered.
How can I get the group that never answered without the group of occasional
responders "leaking into" the group?
Thank you,
Karen Dunn Lopez, RN, PhD(c)
The University of Iowa
College of Nursing
karen-lopez@uiowa.edu
--
Jeremy Miles
Learning statistics blog: www.jeremymiles.co.uk/learningstats
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