store value obtained in while loop

[Ninjatovitch]

Hi,

I am acquiring data (1000 points every 0.1 s) in a while loop. I would like to calculate the y-mean of the first sample of 1000 points when I click on a boolean "calibrate", store this value somewhere (outside the while loop?) so that I can subtract it from each new y-amplitude. In the vi below, a new y-mean value is calculated in each loop, altough I would only like to use the first one.

[Baji · Accepted solution]

You dont need to save the value outside the while loop. Keep the offset value when calibrate button is pressed and subtract the value with the acquired value.I modified your VI find the attached VI.

[Ninjatovitch]

Hi Baji,

Thanks a lot for your help!

Best regards,

Ninjatovitch