This software is made available under the terms of the GNU GPL licence that
comes together with this package.

It consists of a collection of IDL and Fortran 90 subroutines.

(1) F90 Compilation
--------------------

Two options are available:
(1.1)
- Define the environment variable $FCFLAGS as the directory where fftw3.f lies e.g.
setenv FCFLAGS "-I/usr/local/include"

- then run :
./configure --prefix=$HOME --with-healpix=$HEALPIX
make
make install
make clean

(1.2)
- Edit your own Makefile. A few examples are provided in /F90:
Poker/F90/Makefile
Poker/F90/Makefile.example
Poker/F90/Makefile.franklin
Poker/F90/myoldMakefile
Poker/F90/Makefile.inf-calcul1


(2) IDL setup:
--------------

- Insert the following lines in your $IDL_STARTUP:

defsysv, "!fwhm2sigma", 1.0d0/sqrt(8.0d0*alog(2.0d0))
defsysv, "!arcmin2rad", 1.0d0/60.0d0*!dtor
defsysv, "!undef", -32768
defsysv, "!poker", getenv("POKER_DIR") ; this should point to the Poker directory that you get when you untar Poker.tar.gz
defsysv, '!arch', "whatever"           ; if set to "parallel", the it will pause to let you launch poker_mbb separately
defsysv, '!ordi', 'whatever'
!path = !path + ':' + expand_path("+"+!poker+"/IDL")                                                                                              


(3) Test:
---------

- /IDL/poker_example.pro guides the user through the estimation of the power
  spectrum and the associated covariance matrix of two example data sets
  provided in the directory /Data.



More information can be found at : http://www.ias.u-psud.fr/poker
