clipping of time series

[MarcusSchmieder]

Hi there,

I am new to Signal express and I have to admit I really like it. However, I am facing the problem, that we are collecting 30+Mb of data on every measurement and I have to select only a few seconds out of these 30Mb to create a report for power spectrum and other things.

So my question: 

How is it possible to tell signal express to do the calculations and analysis only on a fraction of the overall imported file. 

Basically I am looking for a way to crop the time series before and after the event and to use only the part I want to keep.

Is that possible?

Thanks for all of your advice.

Marcus

[DFGray]

From your description, it sounds like you are logging a signal and only wish to analyze a portion of it in playback.  You can use the Subset and Resample step to extract the portion you want.  You can also use the Trigger step to select it, if you have feature which can be selected by and edge or window trigger.  You can also roll your own selection mechanism using a LabVIEW VI as a step. There is a trigger example of this in the SignalExpresss example projects.