Fligner-Killeen Tests

Fligner-Killeen tests based on Conover, Johnson, & Johnson (1981) and Donnelly & Kramer (1999).

function: [out1, out2, out3, out4] = FK_DK_Con(a,x)

The Fligner-Killeen test is a non-parametric test of homogeneity of variance between groups. This function takes a two column matrix (one of group id numbers for individual cases, a second of case values) and performs Fligner-Killeen tests based on modifications of Conover et al. and Donnelly & Kramer. Names may be assigned to groups. Cell matrices are produced containing test results and basic summary statistics. A figure with coefficients of variation and bootstrap ci's is also produced.

Inputs: a - matrix containing group numbers and case values; x (optional) - cell array of group names.

Output: four cell matrices - 1) summary statistics, 2) Donnelly-Kramer results, 3) Conover et al. results based on median, and 4) Conover et al. version based on mean.