Congratulations, you have passed the first test and received the nls2 instruction file.

The nls2 distribution is very large, and can not be distributed by e-mail. In order to obtain robeth you will need either FTP, gopher, or WWW access to StatLib. (To get started with FTP, gopher, or WWW send the one line message

send index

to The nls2 distribution is in the directory S/Nls. The nls2 file is nls.tar.Z and it is compressed tar file of 1.2 Mbytes When using FTP remember to use BINARY mode (these are compressed files) Here is a short description of nls2.

DESCRIPTION: ------------ This system is a set of SPlus functions and programs to estimate the parameters of a non-linear regression model over a given set of observations. The regression function can be defined explicitly as a function of independent variables and of unknown parameters or it can be defined as the solution of a system of differential equations. Heteroscedasticity of errors can be taken into account by modelling the variance function. The model should be described in an operating-system file. REFERENCES: ---------- See the Reference Manual in the LaTeX file "doc/Manual.tex" for additional statistical information. Comments or suggestions may be sent to Bouvier ( but help to people who have problems is not assured. AVAILABILITY: ------------ The installation has been tested on SunOs 4.1 and SolarisOS using SPlus 3.1. C and Fortran compilators should be available. CONTENTS: --------- This directory contains the following files: ReadMe - you're looking at it. INSTALL - a shell-script to install the system TEST - a shell-script to test the installation Makefile - a makefile used by INSTALL Copyright - the copyright Summary - a short summary to put in the S index. CREATE.distrib -a shell-script to create a directory to be sent to others installators from an installed version (i.e where the object-files and .Data directories are removed). CREATE.solaris -a shell-script to transform a Sun-OS version into a Solaris-OS one (or any site where neither the OS-command "ranlib" nor the S-command "dyn.load2" is available) and the directories: doc - the documentation files: "Manual.tex, epres.tex, enota.tex, bib1.bib" are the LaTeX source-files of the Reference Manual. "nls2.l" is the Unix man (nroff source file) that SHOULD BE MODIFIED by the installator to mention the pathname of the installation directory. newfun - the source-files of the S-functions helps - the helps files src - the source-files of the programs called by the functions lib - a Makefile for generating the object-files corresponding to "src" and, after installation, these object-files. analder, crpsi, crinv, nl, lsoda: the packages used by nls2. These are: the formal analysor-derivator of the model description, the formal analysor-derivator of functions description, the formal analysor-derivator of inverse model description, the estimation package and the integrator system. In each of these directories, you could find the files "Makefile", "ReadMe" and the directories "src" and possibly "include". In each of these directories, the shell-script "INSTALL" will create a directory named "lib" containing the object-files and/or librairies. In the "nl" directory, the file "FileMess" contains the text of the messages issued by this package. examples - the examples. Each one is in a sub-directory (see examples/ReadMe). tests - the examples after execution. The "tests" directory is used by the shell-script TEST to verify the installation and can be destroyed afterwards. INSTALLATION: ------------ - Before installation, on a Solaris-OS site (or any site where neither the OS-command "ranlib" nor the S-command "dyn.load2" is available), use the shell-script CREATE.solaris: see the included comments. - Use the shell-script INSTALL for installation: see the included comments.
Last edited on Tue Mar 29 1994 by Mike Meyer