NAME

fcollen -- Modify the vector length of a column in a binary table extension of a fits file.

USAGE

         fcollen fitsfile[ext]  colname collen

DESCRIPTION

This task changes the vector length of a column in a binary table extension to the length specified by the user. The data type of the column is not changed. This program can not be applied to other types of extension (ASCII table or image).

PARAMETERS

infile [file name]

The name, including extension name or extension number in square brackets (e.g., myfile.fits[3] or myfile.fits[event]) of the input FITS file to be read.

colname [string]

Name or number of the column to be changed. (The name is not case sensitive by default.)

collen [integer]

New vector length of the column "colname".

EXAMPLE

Change the vector length of column "data" of the extension "event" of the fits file "myfile.fits" to 20.

              fcollen myfile.fits[event] data 20 

BUGS

SEE ALSO

CATEGORY