At the top-level, you find the files:
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- DESCRIPTION: description according to the CRAN standard
- TITLE:  one-line description (usually, not in the installed version)
- COPYING: the text of the GPL licence.
- "configure": script used by installation.
- "INDEX": list of the functions.
- "INSTALL": script to install nls2. 
- "FILEMESS": a file which contains all the possible messages 
            of the package (in english, but this file can be 
            translated into another language)
- "analDer", "crInv", "crCalib" and "crPsi": 
     commands or shell-scripts for generating 
     C-source programs from the formal description of the model, 
     of the inverse of the regression function,
     of the calibration program and of functions of parameters, respectively.
     These commands are to be used by the users.
     Except from crCalib, which is a shell-script, they are created 
     by installation.

* the "html" directory:
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The help-files of the functions in HTML format.

* the "doc" directory:
-----------------------
see the file  doc/00Index.dcf

* the "src" directory:
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- "Makefile": a makefile to compile all the source-files
- "Makevars" and "MyMakevars": files to be included by "Makefile"
- "EquNCalib.c": used by 'calib.nls2', 
      see the argument 'tomyown=EquNCalib.o'
- "ToMyOwn.c": generally empty, 
      see the argument  'method = "MYOWN"'
- "Basic": interface subroutines; 
- "nl":  the estimation programmes.
- "analder": the formal analysor-derivator of the model descriptions
- "lsoda": the integrator system
- "Inv": the programmes evaluating the inverse of the regression function.
- "Psi":  the programmes evaluating functions of parameters.
- "arbre": the programmes used when evaluation by syntax trees.
- "arbreInv" and "arbrePsi": as "arbre" when functions of parameters
and the inverse of the regression function are involved.
-  "programme": the programmes used when evaluation by programme.
- "programmeInv" and ""programmePsi": idem as "programme" when 
the inverse of the regression function and functions 
of parameters are involved.

Files suffixed by ".in" are genuine files from which
the installation procedure build the convenient ones.
 

* the "libs" and "nls2libs" directories:
--------------------------------
Created or re-created by the src/Makefile
during installation:  they contain the compiled-files
and librairies.
"libs" contains the shared libraries.
"nls2libs" contains the static libraries and compiled files.

* the "R"  directory: the source-files of the R functions
------------------------------------------------------------
It is created by 'configure' from the directory "R.in".

* the "R.in" directory: the genuine source-files of the R functions
------------------------------------------------------------

* the "data" directory: data-sets for examples
-----------------------------------------------------------
Files are:
- all.R: to load all the data into  R/Splus.
(this file includes a brief description of each example.)
- <data-set-name>.R: the R/Splus commands to create the data-set.
- <data-set-name>.*: the model formal description file.
- <data-set-name>.*.c or <data-set-name>.*f: the C or Fortran
programmes which calculate the models.

* the "demo"  directory: 
the commands to execute the examples
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The files 'examplename.R' are the input commands.
This directory is created by 'configure' from the 
directory 'demo.in'.



 
