Target Analysis Report — Probability Table Analysis

Context

This analysis report is available for any Target Tode.
It allows computing the impact on the Target State when slightly modifying one probability of a node's Conditional Probability Table.
This is done for each cell of each concerned conditional probability table.

The sensitivity function used is:

$P(h|e)(t) = \frac{P(h,e)(t)}{P(e)(t)}$

where $h$ represents the hypothesis (Target Node = Target State), $e$ represents the context and $t$ the probability.

The derivative of this function is computed as well as the minimum and maximum values when setting the probability to 0% and 100%.

This HTML report has several sections:

Provides a description of the observed variables when the analysis is carried out.

For each sensitive node, a table represents each combination of its values and its parents' values. Each cell contains two parts:
The part on the left indicates the derivative computed for each combination of states. The background of the maximal derivative is yellow.
The part on the right shows the probabilities of the target state when the probability of the a current node's state is set to 0% and to 100%. Obviously, those probabilities are symmetrical for binary nodes.