Replace Autoflag in Flagdata with ALMA Pipeline Flagger

CASA Modification Request 26C108, November 2007

---

---

1. Introduction

The autoflag option in flagdata is ineffective and should be removed. The ALMA pipeline has developed a much more robust autoflager, and that should be implemented in casapy.

2. Background

3. Requirements

An intelligent autoflag that can flag obviously bad data from the u-v data set will be an important tool for EVLA and ALMA processing, especially for pipeline processing.

4. Design

Import the ALMA pipeline rendition of the autoflager. I don't know the details, but was developed by John Lightfoot and I have used it successfully. I don't know if it was developed in c++ or in python. I would suggest invited John to Socorro to implement the software. It should probably be in its own task, rather than part of flagdata.

5. Deployment Checklist

6. Test Plan

6.1 Internal Testing

6.2 Sponsor Testing

6.3 Integration/Regression Tests

6.4 Testing for Scientific Validity

---

Signatures

APPROVED: I acknowledge that my request is fully contained in this MR, and if the CASA development group delivers exactly what I specified, I will be happy.

ACCEPTED: I acknowledge that I have validated the completed code according to the acceptance tests, and I am happy with the results.

Written	- - - - -
Checked	- - - - -
Approved by Scientific Sponsor	- - - - -
Accepted/Delivered by Sponsor	- - - - -

Symbols:

• Use %X% if MR is not complete (will display )
• Use %Y% if MR iscomplete (will display )

---

Discussion Area

-- NicoleRadziwill - 30 Oct 2007

-- EdFomalont - 06 Nov 2007

-- EdFomalont - 07 Nov 2007