remove Outliers vi

[Blue_Devil]

Hi Guys.

I'm trying to remove some outliers from my data. I have the "Remove Outliers.vi" but I don't really understand how to use it in the Range Setting.

Could somebody please explain , how does the "Range Input" work, so I can remove the Outliers from my data. Please take a look at the attached image.

Thanks in advance for your help.

Kind regards

[Taki1999]

The LabVIEW help seems pretty clear on this one:

Range specifies the upper and lower bounds of the range. This VI removes data points that lie on or outside the bounds of Range. If range type is Y or X, this VI uses the first two elements in Range as the upper and lower bounds, respectively, for the given axis. If range type is X and Y, this VI uses the first and second elements in Range as the upper and lower bounds for the x-axis and the third and fourth elements in Range as the upper and lower bounds for the y-axis.

For your specific case, you may need to do some manipulation to better identify what you mean by outliers (i.e. you may want to first calculate a distance function away from your spline fit and then remove items with distance greater than a particular threshold.)

[mikeporter]

The thing is, its pretty easy to remove values outside a given range. The tricky part can be deciding what the range should be. Are you looking to remove points that clearly indicate an error like a broken thermocouple, or are you looking to remove datapoints that are potentially reasonable values, but are statistical outliers?

Mike...