matlab.io.fits.readKeyUnit
Read physical units string from keyword
Syntax
units = readKeyUnit(fptr,keyname)
Description
units = readKeyUnit(fptr,keyname)
returns the physical units from an
existing keyword. If no units are defined, units
is returned as an
empty character vector.
This function corresponds to the fits_read_key_unit (ffgunt)
function in
the CFITSIO library C API.
Examples
import matlab.io.* fptr = fits.createFile('myfile.fits'); fits.createImg(fptr,'long_img',[10 20]); fits.writeKey(fptr,'VELOCITY',12.3,'orbital speed'); fits.writeKeyUnit(fptr,'VELOCITY','km/s'); units = fits.readKeyUnit(fptr,'VELOCITY'); fits.closeFile(fptr);