Hello all, I have one single dataset consisting of the same attributes, but the data describes several hundred groups of different data. The data correlates, but respectively only in each group. Now I would like to generate a correlation matrix for each group of data automatically and then average the output of all correlation matrices into one single correlation matrix. Any ideas? If I generate a single correlation matrix out of all the data, there is almost no correlation. I’m completely new to KNIME, so I’m glad about every hint :slight_smile: Cheers and thanks, Flo

Correlation matrix for each group

ipazin September 7, 2020, 11:12am 8

Column Expressions got speedup with KNIME version 4.2.1. so your workflow should be a bit faster if still in use

Br,
Ivna