matlab.io.fits.readKey
Read keyword
Syntax
[value,comment] = readKey(fptr,keyname)
Description
[value,comment] = readKey(fptr,keyname)
returns the specified key and
comment. Specify keyname
as a character vector or string scalar.
value
and comment
are returned as character
vectors.
This function corresponds to the fits_read_key_str
(ffgkys)
function in the CFITSIO library C API.
Examples
import matlab.io.* fptr = fits.openFile('tst0012.fits'); n = fits.getNumHDUs(fptr); for j = 1:n fits.movAbsHDU(fptr,j); [key,comment] = fits.readKey(fptr,'NAXIS'); fprintf('HDU %d: NAXIS %s, "%s"\n', j, key, comment); end fits.closeFile(fptr);