From Wed Nov 3 05:31:44 1999
Subject: $SCATTER question
Date: Wed, 03 Nov 1999 14:35:17 +0100

> Dear colleague,
> I have participated to the NONMEM course (beginning level) held in
> UPPSALA in September. Now I try to analyze some data using Visual NM.
> I have a problem at the Check Out step with the scatter plots: My
> population include 40 subjects and the scatter are displayed only for
> the firts 15 subjects, except for the scatter ID vs DV, for which all
> the subjects are displayed. Do you know what could be the origin of this
> problem and how to solve it?
> Sorry for this very basic question and let me know if you are not the
> good person to contact for questions about NONMEM (Should I use the
> nmusers list?).
> Thank you very much
> Chantal Le Guellec
> Laboratory of pharmacology
> Tours University hospital
> France






Date: Wed, 3 Nov 1999 15:32:44 -0800 (PST)
From: ABoeckmann <>
Subject: Re: Question about NONMEM

The Guide VIII (on-line help) entry for $SCATTER explains:

A maximum of 900 data records are included in each scatterplot. When DV, RES, or WRES is plotted, records having MDV=1 are not plotted.

I suspect that your data set is larger than 900 records, but that the number of actual observations is not much larger than 900. Use the FROM/TO options of $SCATTER to create as many scatters as necessary to see all subjects, or, create a table file and use software to create the scatters that is not limited as to the number of points.

Alison Boeckmann