NkeyNkey
-
Number of unique FITS keywords in a FitsChan
- Description:
- This attribute gives the total number of unique FITS keywords
stored in a FitsChanFitsChan. It is updated as cards are added or
deleted. If no keyword occurrs more than once in the FitsChan, the
NcardNcard and Nkey attributes will be equal. If any keyword occurrs
more than once, the Nkey attribute value will be smaller than
the Ncard attribute value.
- Type:
- Integer, read-only.
- Class Applicability:
-
FitsChan
-
All FitsChans have this attribute.