CROSSTABS: Don't calculate ASE for symmetric Somers' d.

[pspp] / src / language / stats / crosstabs.q

diff --git a/src/language/stats/crosstabs.q b/src/language/stats/crosstabs.q
index 21947ee45785426476716947b4581cc65ec3fac6..e3f5aee1d573ec8dc105d085538cc677090fcd26 100644 (file)
--- a/src/language/stats/crosstabs.q
+++ b/src/language/stats/crosstabs.q
@@ -18,8 +18,8 @@
 
    - How to calculate significance of symmetric and directional measures?
    - How to calculate ASE for asymmetric lambda?
-   - ASE of Goodman and Kruskal's tau is not calculated.
-   - ASE of symmetric somers' d is wrong.
+   - How to calculate ASE for symmetric Somers' d?
+   - How to calculate ASE for Goodman and Kruskal's tau?
    - Approx. T of uncertainty coefficient is wrong.
 
 */
@@ -2535,7 +2535,7 @@ calc_symmetric (struct crosstabs_proc *proc, struct pivot_table *pt,
       if (proc->statistics & (1u << CRS_ST_D))
        {
          somers_d_v[0] = (P - Q) / (.5 * (Dc + Dr));
-         somers_d_ase[0] = 2. * btau_var / (Dr + Dc) * sqrt (Dr * Dc);
+         somers_d_ase[0] = SYSMIS;
          somers_d_t[0] = (somers_d_v[0]
                           / (4 / (Dc + Dr)
                              * sqrt (ctau_cum - pow2 (P - Q) / pt->total)));