How to Extract Array from DAQmx Read

[GeoffreyGodzilla2]

I have downloaded a DAQmx VI to measure a voltage. The taskout of the DAQmx Read goes to a waveform graph. How do I convert this into an array so I can manipulate columns (eg: column 3 = function(column 2)) and save the resulting csv file

Many thanks

[GerdW]

Hi Geoffrey,

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@GeoffreyGodzilla2 wrote:

The taskout of the DAQmx Read goes to a waveform graph. How do I convert this into an array so I can …

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Wrong, it's the data output of the DAQmxRead function! Use AutoCleanup on your VI!

It's an array of waveforms: when you need just the sample arrays then use GetWaveformComponent in a loop…

Your question is very basic LabVIEW stuff, so you better re(read) the LabVIEW help!

[GeoffreyGodzilla2]

I am sorry sir. Please direct me to any help you suggest. I do not know what an array of waveforms is. I use python but not LabVIEW but I will learn.

I expected an array of length number of samples and two columns of time and Y. 

Many thanks.