[EpiData-list] Re: Test of a new "set" principle

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Thu Nov 27 09:45:55 CST 2008


The very quick message from N. Verlander was the observation that:
set option means = ?
option means not supported
. set option means = "/t"
OPTION MEANS = "/t"

set option tables = ?
tables sex kmgrp

option tables = /t /r
tables sex kmgrp /t /r        (but the user wrote the same as above)

The message of the default options NOT defined is correct.
But we could/should most likely change the message from:
option table not supported
to
option table not defined

Another issue was that the option /t2 was not defined for Ichart. This
will add two tests:
test 4: 2 out 3 successive points more than 2 standard deviations (sigma)
away from the centerline.
test 5: 4 out of 5 successive points more than one standard deviation
(sigma) away from the centerline.
and currently also lines at 1 and 2 sigma from the centerline, but only
for Ichart.

A detailed document on respecification of spc charts is now available on
the testing page.
-- 
Jens Lauritsen
Coordinator and initiator of EpiData Project
http://www.epidata.dk




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