healpy.pixelfunc.isnpixok

healpy.pixelfunc.isnpixok(npix)

Return True if npix is a valid value for healpix map size, False otherwise.

Parameters:

npix : int, scalar or array-like

integer value to be tested

Returns:

ok : bool, scalar or array-like

True if given value is a valid number of pixel, False otherwise

Examples

>>> import healpy as hp
>>> hp.isnpixok(12)
True

>>> hp.isnpixok(768)
True

>>> hp.isnpixok([12, 768, 1002])
array([ True,  True, False], dtype=bool)