This routine counts and reports the number
of elements of an array within an input NDF
structure that have a value or
absolute value greater or less than a specified threshold. This statistic is
also shown as a percentage of the total number of array elements.
ABS = _LOGICAL (Read)
criterion is a comparison of the absolute value with the threshold; if
criterion is a comparison of the actual value with the threshold. The current value
is the suggested default.
ABOVE = _LOGICAL (Read)
the criterion tests whether values are greater than the threshold; if
the criterion tests whether values are less than the threshold. The current
value of ABOVE is the suggested default.
components whose flagged values are to be substituted. It may be
"Quality" is specified, then the quality values are
treated as numerical values in the range 0 to 255.
IN = NDF (Read)
Input NDF structure containing the array to be tested.
VALUE = _DOUBLE
Threshold against which the values of the array elements will be tested.
It must lie in within the minimum and maximum values of the data type of the
array being processed, unless ABS=
TRUE or the component is the variance or
quality array, in which case the minimum is zero. The suggested default is
the current value.