Crono_Vue
                 Regards croisés sur les séries chronologiques

                             Martine Feissel-Vernier
                            Observatoire de Paris and
                          Institut Geographique national
                                 27 August 2002

   Crono_Vue is a time series visualising tool. It extracts from the time 
series various components, such as trend (low frequency component), cyclic 
and irregular components. It also analyses the spectral content and 
performs Allan variance stability analyses. The main output is graphical. 
Crono\_Vue is coded in Fortran and uses the GMT graphical package in a 
UNIX environment. It makes use of a few classical statistical concepts 
that the reader will find in the papers listed in the references.

                 The sources and some examples are available 
              at URL http://lareg.ensg.ign.fr/IDS/software.html
        and on anonymous ftp://lareg.ensg.ign.fr/pub/martine/crono_vue


List of export Crono_Vue files
------------------------------

Please report to feissel@ensg.ign.fr any problem in implementing the code.

0) crono-vue.readme: this file

1) The main program, subroutines and functions in 19 separate files:

- crono_vue.f (with "include" Fortran instructions 
               for the 18 subroutines and functions)
- crono.f
- allan.f
- binsup.f
- call_chi.f
- chi2.f
- diversig.f
- elcopo.f
- elfil.f
- elfil2.f
- elpond.f
- elsais.f
- eltend.f
- mcgauss.f
- netcent.f
- spfil.f
- tridin.f
- valmed.f
- varbruit.f

2) The 18 subroutines and functions files appended to main program file:

- tot_crono_vue.f


The user may use either the set of codes in 1) or the single code in 2).

Note on linker. On the computer on which crono_vue was developed, the 
following warning is given.

/usr/ccs/bin/ld: (Warning) Linker features were used that may not be 
supported in future releases. The +vallcompatwarnings option can be 
used to display more details, and the ld(1) man page contains additional 
information. This warning can be suppressed with the +vnocompatwarnings 
option.

3) The explanatory notice: crono_vue.ps

4) A sample dataset, corresponding to fig. 5 of the notice:

- crono_vue.dat_fig5   to be copied as crono_vue.dat
- crono_vue.serie_fig5 to be copied as crono_vue.serie

5) Versions of crono_vue.dat corresponding to figs. 1-9 of the notice:

- crono_vue.dat_fig1
- crono_vue.dat_fig2
- crono_vue.dat_fig3
- crono_vue.dat_fig4
- crono_vue.dat_fig5
- crono_vue.dat_fig6
- crono_vue.dat_fig7
- crono_vue.dat_fig8
- crono_vue.dat_fig9