AIPS HELP file for NITER in 31DEC24
As of Sun Nov 3 22:42:32 2024
HELP SECTION
NITER
Type: Adverb (Real)
Use: NITER is a general adverb to express a number representing the
maximum number of iterations in a process such as Cleaning an
image, steps in a solving a non-linear relationship, or a limit
for the listing data.
Null value: 0
Null value assignment varies with task or verb.
Verbs:
OBITIMAG......Access to OBIT task Imager without self-cal or peeling.
OBITMAP.......Simplified access to OBIT task Imager.
OBITPEEL......Access to OBIT task Imager with self-cal and peeling.
OBITSCAL......Access to OBIT task Imager with self-cal, NOT peeling.
Procedures:
CXIMAGR.......Grid UV data into a complex image, Fourier transform,
Clean.
DOFARS........Procedure to aid in Faraday rotation synthesis using the
FARS task.
DOOSRO........Calibrating amplitude and phase, and imaging VLA data.
LINIMAGE......Build image cube from multi-IF data set.
MAPPR.........Simplified access to IMAGR.
PIPEAIPS......Calibrating amplitude and phase, and imaging VLA data.
VLARUN........Calibrating amplitude and phase, and imaging VLA data.
Y2KSAVE.......Verifies correctness and performance using standard
problems.
Tasks:
AGAUS.........Fits 1-dimensional Gaussians to absorption-line spectra.
APCLN.........Deconvolves images with CLEAN algorithm.
APGS..........Deconvolves image with Gerchberg-Saxton algorithm.
APVC..........Deconvolves images with van Cittert algorithm.
BSCLN.........Hogbom Clean on beam-switched difference image.
BSTST.........Graphical display of solutions to frequency-switched
data.
CXCLN.........Complex Hogbom CLEAN.
DCONV.........Deconvolves a gaussian from an image.
DESCM.........Copies a portion of a UV data set.
FARS..........Faraday rotation synthesis based on the brightness vs
wavelength.
FRCAL.........Faraday rotation self calibration task.
FTARS.........Fits 1-dimensional polarization spectrum to Q/U text
file.
HOCLN.........Task to do a clean of holography images.
IMAGR.........Wide-field and/or wide-frequency Cleaning / imaging task.
IMFIT.........Fits Gaussians to portions of an image.
JMFIT.........Fits Gaussians to portions of an image.
OMFIT.........Fits sources and, optionally, a self-cal model to uv
data.
RMFIT.........Fits 1-dimensional polarization spectrum to Q/U cube.
RSTOR.........Restores a Clean component file to a map with a Gaussian
beam.
SCIMG.........Full-featured imaging plus self-calibration loop with
editing.
SCMAP.........Imaging plus self-calibration loop with editing.
SDCLN.........Deconvolves image by Clark and then "SDI" cleaning
methods.
STEER.........Task which deconvolves the David Steer way.
TARS..........Simulation of Faraday rotation synthesis (mainly task
FARS).
UTESS.........Deconvolves images by maximizing emptiness.
UVDIF.........Prints differences between two UV data sets.
UVFIT.........Fits source models to uv data.
UVFND.........Prints selected data from UV data set to search for
problems.
UVGIT.........Fits source models to uv data.
VTESS.........Deconvolves sets of images by the Maximum Entropy Method.
XGAUS.........Fits 1-dimensional Gaussians to images: restartable.
EXPLAIN SECTION