NDF_ASTAT - Determine the state of an NDF axis component (defined or undefined)

Description:

The routine returns a logical value indicating whether a specified NDF axis component has a defined value (or values).

Invocation:

CALL NDF_ASTAT( INDF, COMP, IAXIS, STATE, STATUS )

Arguments:

INDF = INTEGER (Given)

NDF identifier.

COMP = CHARACTER $*$ ( $*$ ) (Given)

Name of the axis component: 'CENTRE', 'LABEL', 'UNITS', 'VARIANCE' or 'WIDTH'.

IAXIS = INTEGER (Given)

Number of the NDF axis for which information is required.

STATE = LOGICAL (Returned)

Whether the specified component is defined.

STATUS = INTEGER (Given and Returned)

The global status.

Notes:

• A comma-separated list of axis component names may also be given, in which case the routine will return the logical "AND" of the states of the specified components (i.e. a .TRUE. result will be returned only if all the components have defined values).

• A value of zero may be given for the IAXIS argument, in which case the routine will return the logical "AND" of the results for all the NDF's axes.