; CHINC ;--------------------------------------------------------------- ;! the increment between selected channels ;# ADVERB SPECTRAL ;----------------------------------------------------------------------- ;; Copyright (C) 1995, 2020 ;; Associated Universities, Inc. Washington DC, USA. ;; ;; This program is free software; you can redistribute it and/or ;; modify it under the terms of the GNU General Public License as ;; published by the Free Software Foundation; either version 2 of ;; the License, or (at your option) any later version. ;; ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; ;; You should have received a copy of the GNU General Public ;; License along with this program; if not, write to the Free ;; Software Foundation, Inc., 675 Massachusetts Ave, Cambridge, ;; MA 02139, USA. ;; ;; Correspondence concerning AIPS should be addressed as follows: ;; Internet email: aipsmail@nrao.edu. ;; Postal address: AIPS Project Office ;; National Radio Astronomy Observatory ;; 520 Edgemont Road ;; Charlottesville, VA 22903-2475 USA ;----------------------------------------------------------------------- ;--------------------------------------------------------------- CHINC LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC ---------------------------------------------------------------- CHINC Type: Adverb (Real) Use: The number of channels to skip between operations. Null value: 0 Null value is usually assigned 1. Tasks: FRING.......Fringe fit data to determine antenna calibration, delay, rate. CHINC gives the channel increment but each CHINC channels are averaged. IMAGR.......Wide-field and/or wide-frequency Cleaning / imaging task. CHINC is the number of input channels skipped between output image planes. PLOTC.......Plots color schemes used by 3-color plot tasks. CHINC is used for UVPLT. RLDLY.......Fringe fit data to determine antenna R-L delay difference. CHINC gives the channel increment but each CHINC channels are averaged. SERCH.......Finds line signals in transposed data cube. CHINC is the increment in line widths tested. SPLAT.......Applies calibration and splits or assembles selected sources. CHINC is the increment in input channels between output channels for one of the averaging modes. SPLIT.......Converts multi-source to single-source UV files w calibration. CHINC is the increment in input channels between output channels for one of the averaging modes. TVFLG.......Interactive flagging of UV data using the TV. UFLAG.......Plots and edits data using a uv-plane grid and the TV. 0 -> NCHAV. UVDEC.......Decrements the number of spectral channels, keeping every nth (= CHINC). UVHGM.......Plots statistics of uv data files as histogram. UVHIM.......Makes image of the histogram on two user-chosen axes. UVIMG.......Grid UV data into an "image". UVPLT.......Plots data from a UV data base in multiple ways. 0 -> NCHAV. WIPER.......Plots and edits data from a UV data base using the TV. 0 -> NCHAV. Procedures: LINIMAGE....Build image cube from multi-IF data set. MAPPR.......Simplified access to IMAGR. "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. ----------------------------------------------------------------