AIPS HELP file for MULIF in 31DEC24
As of Sat Apr 20 6:28:47 2024
MULIF: Change number of IFs in output
INPUTS
INNAME Input UV data
INCLASS Input UV data (class)
INSEQ Input UV data (seq. #)
INDISK Input UV data disk drive #
OUTNAME Output UV file name
OUTCLASS Output UV file class
OUTSEQ -1.0 9999.0 Output UV file seq. #
OUTDISK 0.0 9.0 Output UV file disk drive #
NPOINTS Number of output IFs.
FQCENTER >= 0 -> center frequency axis
BADDISK -1.0 1000.0 Disks to avoid for scratch.
HELP SECTION
MULIF
Type: Task
Use: Change number of IFs in output. Any "new" IFs added will
have all their values blanked, data from "deleted" IFs
will be lost.
Note: UVCOP is a better way of selecting IFs.
The intent of this task is to either add an IF axis
into data sets which do not contain one or to change the
dimensionality in data sets which do. This is normally
not necessary but may be needed if a particular task
insists on having an IF axis or in order to combine
datasets (DBCON) with different IF axis dimensions.
Adverbs:
INNAME.....Input UV data file
INCLASS....Input UV data file (class). Standard defaults.
INSEQ......Input UV data file (seq. #). 0 => highest.
INDISK.....Input UV data file disk drive #. 0 => any.
OUTNAME....Output UV data name.
OUTCLASS...Output UV data class.
OUTSEQ.....Output sequence number.
OUTDISK....The disk drive # of output images. 0 => highest
NPOINTS....The number of output IFs 0=> 1.
FQCENTER...> 0 => Change frequency axis reference pixel to
Nchan / 2 + 1
else => do not change reference pixel
BADDISK...This array contains the numbers of disks on which
it is desired that scratch files not be located.
BADDISK has no effect on input and output data.
EXPLAIN SECTION