AIPS HELP file for IN4NAME in 31DEC25
As of Wed Dec 11 9:05:15 2024
HELP SECTION
IN4NAME
Type: Adverb (String*12)
Use: Data files are stored in AIPS under logical names which
have 4 parts: a 12-character "name" field, a 6-character
"class" field, and a numeric "sequence number" field.
IN4NAME is used to specify the "name" field for the 4th
of the input data files used by a verb or task. This
adverb is handled by AIPS tasks and verbs under special
"wildcard" rules. These rules determine which test
strings (e.g. image names in the catalog) match the
user-specified string. Except for '*', '?', and trailing
blanks (when an * is present), all characters specified
in IN4NAME must exactly match the corresponding characters
in the test string. A '?' in IN4NAME matches any single
character in the test string. An '*' in IN4NAME matches
0 or more characters in the test string. Thus, IN4NAME
= '*' matches any test string. IN4NAME = 'A?B*D' matches
'ASBD', 'A BXYZD D', and 'A4B45678901D', but does not
match 'ABCD' or 'ASBCDE'.
Null value: ' '
Taken as '*' unless the Help file for the specific task
or verb states otherwise.
Verbs:
CLR4NAME....Clears adverbs specifying the fourth input image
GET4NAME....Fills 4th input image name parameters by catalog slot
number.
IM4HEAD.....Displays the image 4 header contents to terminal, message
file.
Q4HEADER....Verb to summarize the image 4 header: positions at
center.
Tasks:
BLPCL.......Do divide by I,Q,U models for circular polarization
BLCHN. The 4th file is the U model.
CMPLX.......Combines complex images by a variety of mathematical
methods.
COMB........Combines two images by a variety of mathematical
methods. The 4th image is of noise for the 2nd image.
GREYS.......Plots images as contours over multi-level grey. The
4th image is for color blue.
HOCLN.........Task to do a clean of holography images.
IMAGR.......Wide-field and/or wide-frequency Cleaning / imaging
task. The 4th image is of spectral curvature.
KNTR........Make a contour/grey plot file from an image w multiple
panels. The 4th image is of polarization angle or U.
MEDI........Combines four images by a variety of mathematical
methods.
OOSUB.......Subtracts/divides a model from/into a uv data base.
The 4th image is of spectral curvature.
PCNTR.......Generate plot file with contours plus polarization
vectors. The 4th image may be used for contours or grey
scale.
PDPLT.......Plots selected contents of PD tables.
RMFIT.......Fits 1-dimensional polarization spectrum to Q/U cube.
The 4th image is from FARS, either the phase or the
imaginary part.
TVSPC.......Display images and spectra from a cube interactively.
The 4th image is an optional XYf cube to be displayed one
f at a time.
VBGLU.......Glues together data from multiple passes thru the VLBA
correlator.
WTSUM.......Task to do a a sum of images weighted by other images.
The 4th image is of weights assigned to the 2nd image.
Procedures:
BLPOLCAL....Do BLCHN for I, Q, U, V models. 4th is U model.
IMFRING.....Large image delay fitting with IM2CC and OOFRING.
The 4th image is of spectral curvature.
IMSCAL......Large image self-cal with IM2CC and OOCAL.
The 4th image is of spectral curvature.
LINIMAGE....Build image cube from multi-IF data set.
The 4th image is of spectral curvature.
OOCAL.......Determines antenna complex gain with frequency-dependent
models. The 4th image is of spectral curvature.
OOFRING.....Fringe fit data to determine calibration with spectral
index options. The 4th image is of spectral curvature.
EXPLAIN SECTION