How to get the max value of an x-wave on the top graph?

Share icon

Fri, 08/16/2019 - 09:39 am

I'm currently writing a formatting function that I can use on a specific type of data set. I am basically formatting the top graph in a specific way. I have run into a snag however and know what I need to fix it, but am not sure what code snippet I need.

How can you extract the maximum value of an x-wave from the top graph? The data I am working with is in the time domain and I effectively want to pull out the last time point from the graph to use in the function I am writing.

Thank you.

Hi,

I going to make some simplifying assumptions in that you know the name of the Y wave and the graphName, though you can use "" for the top graph.

Look at the function: 

XWaveRefFromTrace(graphNameStr, traceNameStr )
The XWaveRefFromTrace function returns a wave reference to the wave supplying the X coordinates against which the named trace is displayed in the named graph window or subwindow.

Since it returns a wave reference, you can use that in the WaveMax function

WaveMax(waveName  [, x1, x2  ])
The WaveMax function returns the maximum value in the wave for points between x=x1  to x=x2, inclusive.

So combining TheMaxYouSeek = WaveMax(XWaveRefFromTrace(graphNameStr, traceNameStr ))

Andy

August 16, 2019 at 09:48 am - Permalink