Applies to: NeuralTools 5.x and Up

FAQ: How should I interpret Variable Impact percentages in NeuralTools?

Question:
If var1 = 25%, var2 = 15%, and var3 = 10% in the Variable Impact analysis:

Can I say that these three represent 50% of samples?

Answer:
The Variable Impact analysis provides limited guidance.

These percentages indicate the relative contribution of each independent variable to the overall variability in the dependent variable.

• For example, var1 = 25%, var2 = 15%, and var3 = 10% mean that these variables contribute 25%, 15%, and 10% of the total variability in the network output, respectively.

• These values are intended for ranking variables and identifying candidates for elimination, especially those with low impact values.

• Important: These percentages do not represent the percentage of samples in the dataset. They are global measures based on the entire network.

Related Article:

How to Eliminate Variables Based on Impact Analysis