matlab.io.fits.deleteKey

Delete key by name

Syntax

deleteKey(fptr,keyname)


Description

deleteKey(fptr,keyname) deletes a keyword by name. Specify keyname as a character vector or string scalar.

This function corresponds to the fits_delete_key(ffdrec) function in the CFITSIO library C API.

Examples

import matlab.io.*
srcFile = fullfile(matlabroot,"toolbox","matlab", ...
                   "demos","tst0012.fits");
copyfile(srcFile,"myfile.fits")
fileattrib("myfile.fits","+w")
fprintf("Before key deletion...\n")
fitsdisp("myfile.fits",Index=1)
fptr = fits.openFile("myfile.fits","readwrite");
fits.deleteKey(fptr,"DATE")
fits.closeFile(fptr)
fprintf("\n\n\nAfter key deletion...\n")
fitsdisp("myfile.fits",Index=1)