Ilaine

Hello

Thank you very much for your quick and detailed response!!

I ran the sequence code that you provided and I was able to display the CV Krough values for the last 5 minutes.

However, I am still not able to plot such values. If I try to plot Krough (Y expression) versus Time (X expression), my graph is blank...

I really need to plot the CV Krough, because for my measurements the CV Krough (for the last 5min) must be below 0.05 during at least 5 consecutive minutes. When that condition is met I can consider that my measurements are stable enough, so I can log the data and conduct some further calculations.

Any insight of why the plot is not working?

Thank you very much

Hello

I am using a LabJack U6 to read four pressure transducers and a EI1050 thermohygrometer. I am almost done with my project, the only piece missing is that I need to plot the Coefficient of Variation in Krough (which is calculated based on the pressure values) for the last 5 minutes of measurements. That is my first time using DAQFactory, and I am not sure how can I write a function for that.

If I use

StdDev(((pressure0- pressure1 )/2.745)/pressure1)/ Avg (((pressure0 - pressure1)/2.745)/pressure1) 

I will not get the last 5 minutes of measurements...

Thank you very much in advance

Best

Ilaine Matos