On Windows:
An executable is provided to estimate the parameters of the model.
The output are R (Splus)
commands: they create an 'nls2 object' whose slots are the results.
The estimation of the parameters is available only.
R (Splus) is not required for execution. However, it makes vizualisation
of the 'nls2 object' easier.
nls2 was converted for Windows in December 2007 by
Hervé Le Nagard, Inserm U738 (herve.lenagard at bichat.inserm.fr)
On Unix-alike systems:
The source code is provided. To install it, you need:
-
C and Fortran compilators (or FORTRAN-to-C converter)
-
the Lex or flex library
(usually on Unix-like systems: libl.a or libfl.a).
-
a include-file where the C function
"finite(x)" is defined
(usually on Unix-like systems:
ieee754.h or
ieeefp.h).
-
R or
Splus (Splus versions >= 5.1).
If neither R nor Splus is available on your site, use
nls2C:
it is a set of C programmes,
the user calls from his own C or Fortran programme (a typical main
programme is provided).
nls2C allows estimation of the parameters, only.