Experimental Physics and
Industrial Control System

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On 2018-06-16 01:07:11+02:00 Mark Rivers wrote:

Hi Hinko,

I think it would be useful to be able to run the time series in circular buffer mode.  There are 2 ways this might be done:

- Add the code for circular buffer mode to the statistics plugin

- Move the time series code out of the statistics plugin and have the statistics plugin send the time points as NDArrays to time series plugins.

I'm not sure which is best.

I have created an issue for this in ADCore.

Thanks,

Mark

-----Original Message-----

From: [email protected] <[email protected]> On Behalf Of Hinko Kocevar

Sent: Friday, June 15, 2018 3:55 AM

To: [email protected]; Tech-talk <[email protected]>

Subject: Re: time series circular buffer

Hi Tom,

thanks for the suggestion, I have not used this particular plugin so far. I'll give it a try!

Cheers,

Hinko

________________________________________

From: [email protected] <[email protected]>

Sent: Friday, June 15, 2018 9:44:57 AM

To: Hinko Kocevar; Tech-talk

Subject: RE: time series circular buffer

Hi,

There is the NDPluginAttrPlot plugin which takes any numeric stamped NDAttributes (like the ones the NDPluginStats produces) and puts them in a circular buffer, periodically pushing the last N samples to a set of waveforms. We use it to plot arbitrary attributes against each other.

http://cars9.uchicago.edu/software/epics/NDPluginAttrPlot.html

Thanks,

Tom

> -----Original Message-----

&gt; From: [email protected] <[email protected]> On 

> Behalf Of Hinko Kocevar

> Sent: 15 June 2018 07:38

&gt; To: Tech-talk <[email protected]>

> Subject: time series circular buffer

>

> Hi,

>

> in areaDetector NDPluginStats plugin I can get nice timeseries plots 

> for max, mean, min.

> After the number of predefined points are collected the storing stops. 

> Is there a way to configure timeseries buffer as a circular buffer? 

> I've noticed that NDTimeSeries has this feature, but I'm failing to 

> find one in NDPluginStats.

>

> Thanks,

>

> Hinko Kocevar

>

> Beam Diagnostics Engineer

> European Spallation Source ERIC

> P.O Box 176, SE-221 00 Lund, Sweden

> Visiting address: Odarslövsvägen 113, SE-224 84 Lund , Sweden

>

> Mobile: +46-721-79 22 58

> Phone:  +46-46-888 32 58

>

> E-mail: [email protected]

> Web:    www.esss.se

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