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User Reference & Cookbook
Toolkit Reference Manual
CASA Scripts & Data
Invalid Table operation: Table: cannot add a columnthen use clearcal() to force these columns to be made in the MS. Note that this will clear anything in all scratch columns (in case some were actually there and being used).
SEVERE gaincal::Calibrater::solve Caught exception: Invalid Table operation: SetupNewTable ngc5921.demo.gcal is already opened (is in the table cache)Either use a different output caltable name, or restart you casapy session (exit and start again) to free up the cache. Update: As of Patch 4, you can use the rmtables task to delete tables.
See also the Alert notices in the CASA Analysis Cookbook for more details on known problems and workarounds.Frequently Asked Questions
Here are some Frequently Asked Questions, with answers:
A: This is it! The first non-beta public release is Version 3.0.0.
A: We do not have the personnel resources to support a large number of Beta Users and still maintain the necessary development pace, and yet we feel we must support those users who are committed to testing the Beta. Thus, we have implemented a registration system to track these users, and also to allow us to send emails about updates etc.
A: The calibration tasks and tools do things somewhat differently underneath now, particularly for multichannel and multispw data. This should be for the better.
A: The behavior of some of the calibration parameters have changed in Patch 2 (e.g. solint and combine). See the release notes for more information.
A: We are improving mosaic imaging, in particular the use of the PB for imagermode='mosaic'. We are fixing known bugs for Patch 3.1.
A: There are deep fundamental problems underneath in plotxy that cannot be robustly fixed. We are in the process of refactoring the code from the ground up, basing it on the visibility iteration engine used in calibration (which is robust and not slow). This will also allow use of different back ends such as Qt (not just matplotlib. Expect to see a basic beta version of the new plotter perhaps as early as 2.4.0 (Patch 4). In the meantime, we are curtailing further development, and limiting bug fixing, in the current plotxy.
Copyright © 1995-2007 Associated Universities Inc., Washington, D.C.
This code is available under the terms of the GNU General Public Lincense [an error occurred while processing this directive] Modified on Friday, 23-Jul-2010 19:50:55 EDT [an error occurred while processing this directive]