validate_wavelengths

synphot.utils.validate_wavelengths(wavelengths)

Check wavelengths for synphot compatibility.

Wavelengths must satisfy these conditions:

• valid unit type, if given
• no zeroes
• monotonic ascending or descending
• no duplicate values

Parameters:

wavelengths : array-like or Quantity

Wavelength values.

Raises:

synphot.exceptions.SynphotError

Wavelengths unit type is invalid.

synphot.exceptions.DuplicateWavelength

Wavelength array contains duplicate entries.

synphot.exceptions.UnsortedWavelength

Wavelength array is not monotonic.

synphot.exceptions.ZeroWavelength

Negative or zero wavelength occurs in wavelength array.