spike removal

[isaoz]

Is there a simple vi or function that does the following? If the new value of a variable is greater or equal to a specific maximum value it substitutes the previous value instead, otherwise it passes the new value. Basically, I want to use it as a filter of incoming data to remove spikes.

[Coq_Rouge]

Try the "in range and coerce" function in the comparsion palette. You may also look at the Y[i]=Clip{X[i]} VI if you have LV pro or better

[rpursley8]

You can also take a look at the Median Filter function.

[Coq_Rouge]

I agree with Randall. Filtering is the best approach. Using the clipping approach may introduce some heavy signal distortion. If you only have LV base you may try a "running average" filter. You can also try a down sampling method

[isaoz]

Thank you Randall and t06afre. Yes, I had looked at the clip and coerce functions and unfortunately both substitute the limit values as opposed to a value closer previous data samples. I think the pt by pt median filter is closer to what I am looking for. I will report back after tests.