Remove Outliers

Hello, Everyone

Yesterday I posted about needing to join 12 files together to create one large file, my question is this:

I am aware of what the statistics Node can do, is there a way that before connecting to this node, set up a node to remove all the outliers from the data? Say the top and bottom 25% for any given statistical category then have the Statistics Node run off the “Middle” 50%?

I ask because the data set has so many outliers that any stats derived from it are not accurate. My Objective here is to produce a reasonable price for a procedure given past payment data the has a wide range of prices.

Here is my current workflow -

You could try outlier removal

https://www.knime.com/nodeguide/applications/medical-claims/interactive-outlier-detection

And there ist the Outlier Removal from HCS Tools