Basic Analysis • Logistic Analysis • Statistical Details for the Logistic Platform
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Statistical Details for the Logistic Platform
This section contains statistical details for the Whole Model Test report.
Chi-Square
The Chi-Square statistic is sometimes denoted G2 and is written as follows:
where the summations are over all observations instead of all cells.
RSquare (U)
The ratio of this test statistic to the background log-likelihood is subtracted from 1 to calculate R2. More simply, RSquare (U) is computed as follows:
using quantities from the Whole Model Test report.
Note: RSquare (U) is also known as McFadden’s pseudo R-square.

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Help created on 7/12/2018