write_asctab*

This routine stores a power spectrum in an ascii FITS-file. The routine can store temperature coeffecients $C_\ell^T$ or both temperature and polarisation coeffecients $C_\ell^T$, $C_\ell^E$, $C_\ell^B$, $C_\ell^{T\times E}$.

Location in HEALPix directory tree: src/f90/mod/fitstools.F90 

FORMAT

call write_asctab*( clout, lmax, ncl, header, nlheader, filename[, extno] )

Arguments appearing in italic are optional.

ARGUMENTS

name & dimensionality	kind	in/out	description
filename(LEN=filenamelen)	CHR	IN	the FITS file to which the power spectrum is written.
lmax	I4B	IN	Maximum $\ell$ value to be written.
ncl	I4B	IN	1 for temperature coeffecients only, 4 for polarisation.
clout(0:lmax,1:ncl)	SP/ DP	IN	the powerspectrum to be saved in the file.
nlheader	I4B	IN	number of header lines to write to the file.
header(LEN=80) (1:nlheader)	CHR	IN	the header to the FITS-file.
extno	I4B	IN	extension number in which to write the data (0 based). default:0

EXAMPLE:

use healpix_modules
real(SP), allocatable, dimension(:,:) :: cl
character(len=80), dimension(1:100) :: header
allocate(cl(0:64,1:1))
call write_minimal_header(header,'cl',nlmax=64)
call write_asctab (cl,64,1,header,100,'cl.fits')

Writes a power spectrum in the array cl(0:64,1:1) to a FITS-file called `cl.fits'. The cl array contains the temperature power spectrum $C_\ell^T$ up to an $\ell$ value of 64. 100 header lines are written to the file from the array header(1:100) which was previously filled the minimal required information for a power spectrum file.

MODULES & ROUTINES

This section lists the modules and routines used by write_asctab*.

fitstools

module, containing:

printerror

routine for printing FITS error messages.

cfitsio

library for FITS file handling.

RELATED ROUTINES

This section lists the routines related to write_asctab*

alm2cl

Routine computing the power spectrum from spherical harmonics coefficients $a_{\ell m}$

fits2cl

Routine to read a FITS file created by write_asctab.

write_minimal_header

routine to write minimal FITS header