uvfstats and large datasets

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Moderator: Mark.Wieringa

uvfstats and large datasets

Postby and460 » Thu Jan 12, 2012 10:54 am

Just wondering - are there any known problems with 'uvfstats' handling large datasets? I tried to use it on a uv data file for a large mosaic, and it's spitting out negative numbers for the flagged percentage like -8% and other strange things. I know for a fact that the flagged percentage is more like 30%. Using the line parameter to reduce the bandwidth to 128MHz and below doesn't seem to improve the situation much either...
and460
 
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Re: uvfstats and large datasets

Postby Mark.Wieringa » Thu Jan 12, 2012 12:35 pm

Hi,

you're correct, it doesn't handle large datasets well, in percentage mode it gives negative numbers and in absolute mode the numbers overflow the space.
If you specify mode=channel it does work, but gives way to much output for CABB data.

I'll have a look at it and let you know when it's fixed.

Cheers,

Mark
Mark.Wieringa
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Re: uvfstats and large datasets

Postby and460 » Thu Jan 12, 2012 6:01 pm

OK - thanks Mark!
and460
 
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Re: uvfstats and large datasets

Postby Mark.Wieringa » Fri Jan 13, 2012 9:05 am

Hi again,

uvfstats has now been updated to handle large files.

Cheers,

Mark
Mark.Wieringa
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Re: uvfstats and large datasets

Postby and460 » Mon Jan 23, 2012 2:31 pm

Cheers Mark - much appreciated!
and460
 
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