mystery solved, I was wondering why that looked so weird. it was the j in index typo

Author: lkirk

c/tests/test_stats.c

@@ -2637,13 +2637,11 @@ test_paper_ex_two_site(void)
 
     tsk_treeseq_from_text(&ts, 10, paper_ex_nodes, paper_ex_edges, NULL, paper_ex_sites,
         paper_ex_mutations, paper_ex_individuals, NULL, 0);
-    double truth_three_index_tuples[27] = { 1, 1, 0.71111111111111114,
-        0.1111111111111111, 0.1111111111111111, -0.0074074074074074042,
-        0.1111111111111111, 0.1111111111111111, -0.0074074074074074042,
-        0.1111111111111111, 0.1111111111111111, -0.0074074074074074042, 1, 1,
-        0.70833333333333326, 1, 1, 0.70833333333333326, 0.1111111111111111,
-        0.1111111111111111, -0.0074074074074074042, 1, 1, 0.70833333333333326, 1, 1,
-        0.70833333333333326 };
+    double truth_three_index_tuples[27] = { 1, 1, 0, 0.1111111111111111,
+        0.1111111111111111, 0, 0.1111111111111111, 0.1111111111111111, 0,
+        0.1111111111111111, 0.1111111111111111, 0, 1, 1, 0.94921874999999978, 1, 1,
+        0.94921874999999978, 0.1111111111111111, 0.1111111111111111, 0, 1, 1,
+        0.94921874999999978, 1, 1, 0.94921874999999978 };
 
     tsk_size_t sample_set_sizes[3], num_index_tuples;
     tsk_id_t sample_sets[ts.num_samples * 3], index_tuples[2 * 3] = { 0, 1, 0, 0, 0, 2 };