matlab.io.fits.writeChecksum
Compute and write checksum for current HDU
Syntax
writeChecksum(fptr)
Description
writeChecksum(fptr)
computes and writes
the DATASUM
and CHECKSUM
keyword
values for the current HDU into the current header. If the keywords
already exist, their values are updated only if necessary (for example,
if the file has been modified since the original keyword values were
computed).
This function corresponds to the fits_write_chksum
(ffpcks)
function in the CFITSIO library C API.
Examples
import matlab.io.* fptr = fits.createFile('myfile.fits'); fits.createImg(fptr,'long_img',[10 20]); fits.writeChecksum(fptr) fits.closeFile(fptr); fitsdisp('myfile.fits','mode','full');