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re: st: Re: error in -vanelteren- (1 group found, 2 required)
From
"Ariel Linden" <[email protected]>
To
<[email protected]>
Subject
re: st: Re: error in -vanelteren- (1 group found, 2 required)
Date
Tue, 21 Jan 2014 10:58:53 -0500
Thank you, Joseph. This is very helpful!
Date: Tue, 21 Jan 2014 10:34:36 +0900
From: "Joseph Coveney" <[email protected]>
Subject: Re: st: Re: error in -vanelteren- (1 group found, 2 required)
Ariel Linden wrote:
Thanks to both Red Owl and Joseph Coveney for the response!
That error message is easy to misunderstand. I assumed (wrongly) that the
error was referencing the binary variable used in by(), not in missing
levels of the strata...
Joseph, FYI, I emailed you at [email protected] on 12/29/13 and then
again at [email protected] on 1/1/14. I did not receive a notification of a
bounce either time...
-
----------------------------------------------------------------------------
----
Sorry about the misunderstood error message. I suppose that it's like the
"no observations" error message that you can get from some official Stata
commands that seems curious at first.
Regardless, I recommend using the -emh- command in lieu of -vanelteren- for
performing van Elteren's test. I've posted at least a couple of times on
this
list how to do it, but if you need a handy permanent reference as to how,
you
can take a look at the FAQ on the same topic by SAS for its PROC FREQ at
http://support.sas.com/kb/25/022.html . You'd use the analogous options
with
- -emh-, that is,
PROC FREQ;
TABLES STRATA * TREATMENT * RESPONSE / CMH2 SCORES=MODRIDIT NOPRINT;
RUN;
becomes
emh response treatment, strata(strata) anova transformation(modridit)
You can download and install -emh- from the same source as you got
-vanelteren-.
- -emh- can do everything that the older -vanelteren- can, and much more
besides.
Checked again, and no hits. I can see how the bigplanet account might not
have
had anything--it has a "Postini" spam filter on the mail server that can get
pretty aggressive. But I can't explain why the gmail account doesn't have
anything from you on the fourteenth except your Statalist post on
subscripting.
Joseph Coveney
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