NONMEM Users Guide Part I - Users Basic Guide
Preface to 3rd Edition

NONMEM Users Guide Part I - Users Basic Guide

Preface to 3rd Edition

The appearance of this 3rd edition of the Users Basic Guide coincides with the appearance of NONMEM 77 Version III Level 1. The 2nd edition was written before NONMEM 77 was developed, and its appearance coincided with that of Version II of the earlier IBM-specific NONMEM. Therefore, much has happened to the NONMEM program since the 2nd edition which should be documented in the Users Basic Guide, and this 3rd edition achieves this goal. In addition, with this edition there are many changes to the document which substantially improve its readability and clarity. However, the organization and examples used in the 3rd edition are little changed from those used in the 2nd edition.

The IBM-specific NONMEM has not been distributed since it was superceded in 1984 by NONMEM 77, a program that can be used with any machine with an ANSI FORTRAN 77 compiler. There is not as much opportunity today as there was earlier to confuse these two programs, and so there is not as much necessity when referring to the current program to follow the name ’NONMEM’ with the term ’77’. Consequently, with the appearance of Version III of NONMEM 77 it will henceforth be called simply NONMEM, and this practice is reflected in this 3rd edition of the Users Basic Guide.

The new features in Version III are:

1.

The problem summary has been streamlined.

2.

NONMEM can provide some help in obtaining initial estimates for Image grohtml-18746-3.png , Image grohtml-18746-4.png and Image grohtml-18746-5.png .

3.

The appearance of any given task specification record is optional.

4.

Tables can be either printed or stored in (machine-readable) files.

5.

A new task can be performed which simulates data according to the user-specified model. This data can be analyzed by performing the estimation, covariance, tables and scatterplot tasks.

6.

The objective function can be partly defined by user-code.

Features 1-4 are described in this Guide. Features 5-6 are described in the 2nd edition of NONMEM Users Guide, Part II, whose appearance also coincides with the appearance of Version III.

It is advisable that a new NONMEM user read this Guide and try running and understanding some or all of the examples found herein. The user can check that he has correctly installed the program by comparing the output he obtains with the output displayed in this document. There might be some rather small discrepancies in so far as the computations are somewhat machine dependent. All the output in this Guide is obtained using a SUN model 2, equipped with a SKY floating-point coprocessor and running SUN UNIX 4.2 Release 3.4. All the output is obtained using Double Precision NONMEM; see section A.1.

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