[daip] UVPLT plotting vs. freq.

[Eric Greisen]

Michael Bietenholz wrote:
> Sorry - forgot to edit a very old subject line
> 
> Its just a quick way of checking sort of overall frequency dependence
> of things - POSSM can do it but only one baseline at a time (SPFLG can
> do some of this as well).
> 
> For example - just plot all your vis.data amp vs freq.  THen you can
> quickly see which channels have RFI spikes.  For JVLA data with many
> channels, the most efficient thing is usually just to toss a few
> entire channels and not worry too much about which antennas/baselines
> the problem is on.  AIPS has good tools for surgically identifying the
> latter but its very time-consuming.   Its the ability to plot data
> from many/all baselines together that I'm after.
> 
>               michael
> 
> 
>>>  How difficult would it be to get uvplot to allow "frequency" as one 
>>> of the
>>>  X/Y axis values?  It would be quite useful with todays data-sets with
>>>  many channels/spw

I have putbck UVPLT and WIPER with frequency and channel number as axis 
types 19 and 20, resp.

Eric Greisen