Averaging 100 consecutive measurements below a threshold value

Hi,
I have just started labview programming. I'm having difficulties with programming just this very simple code. I've been breaking my head all night. I will appreciate a speedy response.
How can I make a code that would enable averaging 100 consecutive measurements that are below a certain threshold value in labview?
Thanks.
Solved!
Go to Solution.

Try the attached. The key is the shift registers -- the integer (blue) is a counter of below-threshold measurement and it resets to 0 if there is an above-threshold meas. The result is saved whenever the counter gets above 100 (indicating >=100 consecutive "good" values). This also stops the internal while loop and the external loop causes the shift registers to reinitialize. I added a "set file position" function so the values will append rather than overwrite the file. You'll probably need to insert a carriage return into the string that gets written to file so the values will appear on separate lines. I also changed your data types to DBL -- they were I32 (integer) which does not seem to jive with your indication you were taking analog measurements.
Attachments:
Average.vi ‏13 KB

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Solved!
Go to Solution.
Attachments:
AveAboveThresholdAll.vi ‏15 KB

Actually I think that Tims solution has a little difference to the stated problem that both limits should be above a threshold value. Since the second array is inverted the rounding should be not towards +Infinity but towards -Infinity in order to really only go up to the last element that is above the threshold. The code as made by Tim takes one sample more, which could or couldn't have any significance.
Nevermind, I take that back.
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sorry, attached the wrong VI,
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Averaging 100 consecutive measurements below a threshold value

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