Numeric Scorer

This node computes certain statistics between the a numeric column's values (ri) and predicted (pi) values. It computes =1-SSres/SStot=1-Σ(pi-ri)²/Σ(ri-1/n*Σri)² (can be negative!), mean absolute error (1/n*Σ|pi-ri|), mean squared error (1/n*Σ(pi-ri)²), root mean squared error (sqrt(1/n*Σ(pi-ri)²)), and mean signed difference (1/n*Σ(pi-ri)). The computed values can be inspected in the node's view and/or further processed using the output table.

Dialog Options

Reference column
Column with the correct, observed, training data values.
Predicted column
Column with the modeled, predicted data values.
Change column name
Change the default output column name.
Output column name
The name of the column in the output.

Ports

Input Ports
0 Table with predicted and reference numerical data
Output Ports
0 The computed statistical measures:

Views

Statistics
A table with the statistical measures
This node is contained in KNIME Base Nodes provided by KNIME GmbH, Konstanz, Germany.