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Description:
This routine accepts
an array consisting a series of (vectorised) lines of data. The data values in the lines are then collapsed
to the minimum value in each line. The output minima are returned in the array RESULT. The
vectorised pixel indices corresponding to the minima are also returned in POSIND.
Invocation
CALL
CCG_MN3x( BAD, NPIX, NLINES, STACK, RESULT, POSIND, WRK1, NCON, NBAD, STATUS )
Arguments
BAD = LOGICAL (Given)
If true, there may be bad pixels present in the array. If false, it
is safe not to check for bad values.
NPIX = INTEGER (Given)
The number of pixels in a line of data.
NLINES = INTEGER (Given)
The number of lines of data in the stack.
STACK( NPIX, NLINES ) =
? (Given)
The array of lines which are to be combined into a single line.
RESULT( NPIX ) =
TYPE
(Returned)
The output line of data.
POSIND( NPIX ) = INTEGER (Returned)
The pixel indices of
the minima in each output pixel.
WRK1( NLINES ) = ? (Returned)
Workspace for calculations.
NCON( NLINES ) = DOUBLE PRECISION (Returned)
The actual number of contributing pixels from
each input line to the output line.
NBAD = INTEGER (Returned)
The number of bad values in the
output array created while forming the statistics. It excludes those bad values whose corresponding
values along the collapse axis are all bad.
STATUS = INTEGER (Given and Returned)
The global
status.
Notes:
-
There is a routine for each numeric data type: replace "
x"
in the routine name by D, R, I, W, UW, B or
UB as appropriate. The STACK, RESULT, and WRK1 arguments supplied to the routine must have the
data type specified.
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