+static void
+var_array_uninit (struct var_array *va)
+{
+ if (va)
+ free (va->vars);
+}
+
+static void
+var_array2_uninit (struct var_array2 *vaa)
+{
+ if (vaa)
+ {
+ for (size_t i = 0; i < vaa->n; i++)
+ var_array_uninit (&vaa->vas[i]);
+ free (vaa->vas);
+ }
+}
+
+static struct var_array2
+nest_fts (struct var_array2 va0, struct var_array2 va1)
+{
+ if (!va0.n)
+ return va1;
+ else if (!va1.n)
+ return va0;
+
+ struct var_array2 vaa = { .vas = xnmalloc (va0.n, va1.n * sizeof *vaa.vas) };
+ for (size_t i = 0; i < va0.n; i++)
+ for (size_t j = 0; j < va1.n; j++)
+ {
+ const struct var_array *a = &va0.vas[i];
+ const struct var_array *b = &va1.vas[j];
+
+ size_t allocate = a->n + b->n;
+ struct variable **vars = xnmalloc (allocate, sizeof *vars);
+ enum pivot_axis_type *axes = xnmalloc (allocate, sizeof *axes);
+ size_t n = 0;
+ for (size_t k = 0; k < a->n; k++)
+ vars[n++] = a->vars[k];
+ for (size_t k = 0; k < b->n; k++)
+ vars[n++] = b->vars[k];
+ assert (n == allocate);
+
+ const struct var_array *summary_src;
+ if (!a->summary_var)
+ summary_src = b;
+ else if (!b->summary_var)
+ summary_src = a;
+ else
+ NOT_REACHED ();
+ vaa.vas[vaa.n++] = (struct var_array) {
+ .vars = vars,
+ .n = n,
+ .summaries = summary_src->summaries,
+ .n_summaries = summary_src->n_summaries,
+ .summary_var = summary_src->summary_var,
+ };
+ }
+ var_array2_uninit (&va0);
+ var_array2_uninit (&va1);
+ return vaa;
+}
+
+static struct var_array2
+stack_fts (struct var_array2 va0, struct var_array2 va1)
+{
+ struct var_array2 vaa = { .vas = xnmalloc (va0.n + va1.n, sizeof *vaa.vas) };
+ for (size_t i = 0; i < va0.n; i++)
+ vaa.vas[vaa.n++] = va0.vas[i];
+ for (size_t i = 0; i < va1.n; i++)
+ vaa.vas[vaa.n++] = va1.vas[i];
+ assert (vaa.n == va0.n + va1.n);
+ free (va0.vas);
+ free (va1.vas);
+ return vaa;
+}
+
+static struct var_array2
+enumerate_fts (enum pivot_axis_type axis_type, const struct ctables_axis *a)
+{
+ if (!a)
+ return (struct var_array2) { .n = 0 };
+
+ switch (a->op)
+ {
+ case CTAO_VAR:
+ assert (!a->var.is_mrset);
+ struct var_array *va = xmalloc (sizeof *va);
+ if (a->scale)
+ *va = (struct var_array) { .n = 0 };
+ else
+ {
+ struct variable **vars = xmalloc (sizeof *vars);
+ *vars = a->var.var;
+ enum pivot_axis_type *axes = xmalloc (sizeof *axes);
+ *axes = axis_type;
+ *va = (struct var_array) { .vars = vars, .n = 1 };
+ }
+ if (a->n_summaries || a->scale)
+ {
+ va->summaries = a->summaries;
+ va->n_summaries = a->n_summaries;
+ va->summary_var = a->var.var;
+ }
+ return (struct var_array2) { .vas = va, .n = 1 };
+
+ case CTAO_STACK:
+ return stack_fts (enumerate_fts (axis_type, a->subs[0]),
+ enumerate_fts (axis_type, a->subs[1]));
+
+ case CTAO_NEST:
+ return nest_fts (enumerate_fts (axis_type, a->subs[0]),
+ enumerate_fts (axis_type, a->subs[1]));
+ }
+
+ NOT_REACHED ();
+}
+
+union ctables_summary
+ {
+ /* COUNT, VALIDN, TOTALN. */
+ struct
+ {
+ double valid;
+ double missing;
+ };
+
+ /* MINIMUM, MAXIMUM, RANGE. */
+ struct
+ {
+ double min;
+ double max;
+ };
+
+ /* MEAN, SEMEAN, STDDEV, SUM, VARIANCE, *.SUM. */
+ struct moments1 *moments;
+
+ /* XXX percentiles, median, mode, multiple response */
+ };
+
+#if 0
+static void
+ctables_summary_init (union ctables_summary *s,
+ const struct ctables_summary_spec *ss)
+{
+ switch (ss->function)
+ {
+ case CTSF_COUNT:
+ case CTSF_ECOUNT:
+ case CTSF_ROWPCT_COUNT:
+ case CTSF_COLPCT_COUNT:
+ case CTSF_TABLEPCT_COUNT:
+ case CTSF_SUBTABLEPCT_COUNT:
+ case CTSF_LAYERPCT_COUNT:
+ case CTSF_LAYERROWPCT_COUNT:
+ case CTSF_LAYERCOLPCT_COUNT:
+ case CTSF_ROWPCT_VALIDN:
+ case CTSF_COLPCT_VALIDN:
+ case CTSF_TABLEPCT_VALIDN:
+ case CTSF_SUBTABLEPCT_VALIDN:
+ case CTSF_LAYERPCT_VALIDN:
+ case CTSF_LAYERROWPCT_VALIDN:
+ case CTSF_LAYERCOLPCT_VALIDN:
+ case CTSF_ROWPCT_TOTALN:
+ case CTSF_COLPCT_TOTALN:
+ case CTSF_TABLEPCT_TOTALN:
+ case CTSF_SUBTABLEPCT_TOTALN:
+ case CTSF_LAYERPCT_TOTALN:
+ case CTSF_LAYERROWPCT_TOTALN:
+ case CTSF_LAYERCOLPCT_TOTALN:
+ case CSTF_TOTALN:
+ case CTSF_ETOTALN:
+ case CTSF_VALIDN:
+ case CTSF_EVALIDN:
+ s->missing = s->valid = 0;
+ break;
+
+ case CTSF_MAXIMUM:
+ case CTSF_MINIMUM:
+ case CTSF_RANGE:
+ s->min = s->max = SYSMIS;
+ break;
+
+ case CTSF_MEAN:
+ case CTSF_SEMEAN:
+ case CTSF_STDDEV:
+ case CTSF_SUM:
+ case CTSF_VARIANCE:
+ case CTSF_ROWPCT_SUM:
+ case CTSF_COLPCT_SUM:
+ case CTSF_TABLEPCT_SUM:
+ case CTSF_SUBTABLEPCT_SUM:
+ case CTSF_LAYERPCT_SUM:
+ case CTSF_LAYERROWPCT_SUM:
+ case CTSF_LAYERCOLPCT_SUM:
+ s->moments = moments1_create (MOMENT_VARIANCE);
+ break;
+
+ case CTSF_MEDIAN:
+ case CTSF_MISSING:
+ case CTSF_MODE:
+ case CTSF_PTILE:
+ NOT_REACHED ();
+
+ case CTSF_RESPONSES:
+ case CTSF_ROWPCT_RESPONSES:
+ case CTSF_COLPCT_RESPONSES:
+ case CTSF_TABLEPCT_RESPONSES:
+ case CTSF_SUBTABLEPCT_RESPONSES:
+ case CTSF_LAYERPCT_RESPONSES:
+ case CTSF_LAYERROWPCT_RESPONSES:
+ case CTSF_LAYERCOLPCT_RESPONSES:
+ case CTSF_ROWPCT_RESPONSES_COUNT:
+ case CTSF_COLPCT_RESPONSES_COUNT:
+ case CTSF_TABLEPCT_RESPONSES_COUNT:
+ case CTSF_SUBTABLEPCT_RESPONSES_COUNT:
+ case CTSF_LAYERPCT_RESPONSES_COUNT:
+ case CTSF_LAYERROWPCT_RESPONSES_COUNT:
+ case CTSF_LAYERCOLPCT_RESPONSES_COUNT:
+ case CTSF_ROWPCT_COUNT_RESPONSES:
+ case CTSF_COLPCT_COUNT_RESPONSES:
+ case CTSF_TABLEPCT_COUNT_RESPONSES:
+ case CTSF_SUBTABLEPCT_COUNT_RESPONSES:
+ case CTSF_LAYERPCT_COUNT_RESPONSES:
+ case CTSF_LAYERROWPCT_COUNT_RESPONSES:
+ case CTSF_LAYERCOLPCT_COUNT_RESPONSES:
+ NOT_REACHED ();
+ }
+}
+
+static void
+ctables_summary_uninit (union ctables_summary *s,
+ const struct ctables_summary_spec *ss)
+{
+ switch (ss->function)
+ {
+ case CTSF_COUNT:
+ case CTSF_ECOUNT:
+ case CTSF_ROWPCT_COUNT:
+ case CTSF_COLPCT_COUNT:
+ case CTSF_TABLEPCT_COUNT:
+ case CTSF_SUBTABLEPCT_COUNT:
+ case CTSF_LAYERPCT_COUNT:
+ case CTSF_LAYERROWPCT_COUNT:
+ case CTSF_LAYERCOLPCT_COUNT:
+ case CTSF_ROWPCT_VALIDN:
+ case CTSF_COLPCT_VALIDN:
+ case CTSF_TABLEPCT_VALIDN:
+ case CTSF_SUBTABLEPCT_VALIDN:
+ case CTSF_LAYERPCT_VALIDN:
+ case CTSF_LAYERROWPCT_VALIDN:
+ case CTSF_LAYERCOLPCT_VALIDN:
+ case CTSF_ROWPCT_TOTALN:
+ case CTSF_COLPCT_TOTALN:
+ case CTSF_TABLEPCT_TOTALN:
+ case CTSF_SUBTABLEPCT_TOTALN:
+ case CTSF_LAYERPCT_TOTALN:
+ case CTSF_LAYERROWPCT_TOTALN:
+ case CTSF_LAYERCOLPCT_TOTALN:
+ case CSTF_TOTALN:
+ case CTSF_ETOTALN:
+ case CTSF_VALIDN:
+ case CTSF_EVALIDN:
+ break;
+
+ case CTSF_MAXIMUM:
+ case CTSF_MINIMUM:
+ case CTSF_RANGE:
+ break;
+
+ case CTSF_MEAN:
+ case CTSF_SEMEAN:
+ case CTSF_STDDEV:
+ case CTSF_SUM:
+ case CTSF_VARIANCE:
+ case CTSF_ROWPCT_SUM:
+ case CTSF_COLPCT_SUM:
+ case CTSF_TABLEPCT_SUM:
+ case CTSF_SUBTABLEPCT_SUM:
+ case CTSF_LAYERPCT_SUM:
+ case CTSF_LAYERROWPCT_SUM:
+ case CTSF_LAYERCOLPCT_SUM:
+ moments1_destroy (s->moments);
+ break;
+
+ case CTSF_MEDIAN:
+ case CTSF_MISSING:
+ case CTSF_MODE:
+ case CTSF_PTILE:
+ NOT_REACHED ();
+
+ case CTSF_RESPONSES:
+ case CTSF_ROWPCT_RESPONSES:
+ case CTSF_COLPCT_RESPONSES:
+ case CTSF_TABLEPCT_RESPONSES:
+ case CTSF_SUBTABLEPCT_RESPONSES:
+ case CTSF_LAYERPCT_RESPONSES:
+ case CTSF_LAYERROWPCT_RESPONSES:
+ case CTSF_LAYERCOLPCT_RESPONSES:
+ case CTSF_ROWPCT_RESPONSES_COUNT:
+ case CTSF_COLPCT_RESPONSES_COUNT:
+ case CTSF_TABLEPCT_RESPONSES_COUNT:
+ case CTSF_SUBTABLEPCT_RESPONSES_COUNT:
+ case CTSF_LAYERPCT_RESPONSES_COUNT:
+ case CTSF_LAYERROWPCT_RESPONSES_COUNT:
+ case CTSF_LAYERCOLPCT_RESPONSES_COUNT:
+ case CTSF_ROWPCT_COUNT_RESPONSES:
+ case CTSF_COLPCT_COUNT_RESPONSES:
+ case CTSF_TABLEPCT_COUNT_RESPONSES:
+ case CTSF_SUBTABLEPCT_COUNT_RESPONSES:
+ case CTSF_LAYERPCT_COUNT_RESPONSES:
+ case CTSF_LAYERROWPCT_COUNT_RESPONSES:
+ case CTSF_LAYERCOLPCT_COUNT_RESPONSES:
+ NOT_REACHED ();
+ }
+}
+
+static void
+ctables_summary_add (union ctables_summary *s,
+ const struct ctables_summary_spec *ss,
+ const struct variable *var, const union value *value,
+ double weight)
+{
+ switch (ss->function)
+ {
+ case CTSF_COUNT:
+ case CTSF_ECOUNT:
+ case CTSF_ROWPCT_COUNT:
+ case CTSF_COLPCT_COUNT:
+ case CTSF_TABLEPCT_COUNT:
+ case CTSF_SUBTABLEPCT_COUNT:
+ case CTSF_LAYERPCT_COUNT:
+ case CTSF_LAYERROWPCT_COUNT:
+ case CTSF_LAYERCOLPCT_COUNT:
+ case CTSF_ROWPCT_VALIDN:
+ case CTSF_COLPCT_VALIDN:
+ case CTSF_TABLEPCT_VALIDN:
+ case CTSF_SUBTABLEPCT_VALIDN:
+ case CTSF_LAYERPCT_VALIDN:
+ case CTSF_LAYERROWPCT_VALIDN:
+ case CTSF_LAYERCOLPCT_VALIDN:
+ case CTSF_ROWPCT_TOTALN:
+ case CTSF_COLPCT_TOTALN:
+ case CTSF_TABLEPCT_TOTALN:
+ case CTSF_SUBTABLEPCT_TOTALN:
+ case CTSF_LAYERPCT_TOTALN:
+ case CTSF_LAYERROWPCT_TOTALN:
+ case CTSF_LAYERCOLPCT_TOTALN:
+ case CSTF_TOTALN:
+ case CTSF_ETOTALN:
+ case CTSF_VALIDN:
+ case CTSF_EVALIDN:
+ if (var_is_value_missing (var, value))
+ s->missing += weight;
+ else
+ s->valid += weight;
+ break;
+
+ case CTSF_MAXIMUM:
+ case CTSF_MINIMUM:
+ case CTSF_RANGE:
+ if (!var_is_value_missing (var, value))
+ {
+ assert (!var_is_alpha (var)); /* XXX? */
+ if (s->min == SYSMIS || value->f < s->min)
+ s->min = value->f;
+ if (s->max == SYSMIS || value->f > s->max)
+ s->max = value->f;
+ }
+ break;
+
+ case CTSF_MEAN:
+ case CTSF_SEMEAN:
+ case CTSF_STDDEV:
+ case CTSF_SUM:
+ case CTSF_VARIANCE:
+ case CTSF_ROWPCT_SUM:
+ case CTSF_COLPCT_SUM:
+ case CTSF_TABLEPCT_SUM:
+ case CTSF_SUBTABLEPCT_SUM:
+ case CTSF_LAYERPCT_SUM:
+ case CTSF_LAYERROWPCT_SUM:
+ case CTSF_LAYERCOLPCT_SUM:
+ moments1_add (s->moments, value->f, weight);
+ break;
+
+ case CTSF_MEDIAN:
+ case CTSF_MISSING:
+ case CTSF_MODE:
+ case CTSF_PTILE:
+ NOT_REACHED ();
+
+ case CTSF_RESPONSES:
+ case CTSF_ROWPCT_RESPONSES:
+ case CTSF_COLPCT_RESPONSES:
+ case CTSF_TABLEPCT_RESPONSES:
+ case CTSF_SUBTABLEPCT_RESPONSES:
+ case CTSF_LAYERPCT_RESPONSES:
+ case CTSF_LAYERROWPCT_RESPONSES:
+ case CTSF_LAYERCOLPCT_RESPONSES:
+ case CTSF_ROWPCT_RESPONSES_COUNT:
+ case CTSF_COLPCT_RESPONSES_COUNT:
+ case CTSF_TABLEPCT_RESPONSES_COUNT:
+ case CTSF_SUBTABLEPCT_RESPONSES_COUNT:
+ case CTSF_LAYERPCT_RESPONSES_COUNT:
+ case CTSF_LAYERROWPCT_RESPONSES_COUNT:
+ case CTSF_LAYERCOLPCT_RESPONSES_COUNT:
+ case CTSF_ROWPCT_COUNT_RESPONSES:
+ case CTSF_COLPCT_COUNT_RESPONSES:
+ case CTSF_TABLEPCT_COUNT_RESPONSES:
+ case CTSF_SUBTABLEPCT_COUNT_RESPONSES:
+ case CTSF_LAYERPCT_COUNT_RESPONSES:
+ case CTSF_LAYERROWPCT_COUNT_RESPONSES:
+ case CTSF_LAYERCOLPCT_COUNT_RESPONSES:
+ NOT_REACHED ();
+ }
+}
+
+static double
+ctables_summary_value (union ctables_summary *s,
+ const struct ctables_summary_spec *ss)
+{
+ switch (ss->function)
+ {
+ case CTSF_COUNT:
+ case CTSF_ECOUNT:
+ return s->valid;
+
+ case CTSF_ROWPCT_COUNT:
+ case CTSF_COLPCT_COUNT:
+ case CTSF_TABLEPCT_COUNT:
+ case CTSF_SUBTABLEPCT_COUNT:
+ case CTSF_LAYERPCT_COUNT:
+ case CTSF_LAYERROWPCT_COUNT:
+ case CTSF_LAYERCOLPCT_COUNT:
+ case CTSF_ROWPCT_VALIDN:
+ case CTSF_COLPCT_VALIDN:
+ case CTSF_TABLEPCT_VALIDN:
+ case CTSF_SUBTABLEPCT_VALIDN:
+ case CTSF_LAYERPCT_VALIDN:
+ case CTSF_LAYERROWPCT_VALIDN:
+ case CTSF_LAYERCOLPCT_VALIDN:
+ case CTSF_ROWPCT_TOTALN:
+ case CTSF_COLPCT_TOTALN:
+ case CTSF_TABLEPCT_TOTALN:
+ case CTSF_SUBTABLEPCT_TOTALN:
+ case CTSF_LAYERPCT_TOTALN:
+ case CTSF_LAYERROWPCT_TOTALN:
+ case CTSF_LAYERCOLPCT_TOTALN:
+ NOT_REACHED ();
+
+ case CSTF_TOTALN:
+ case CTSF_ETOTALN:
+ return s->valid + s->missing;
+
+ case CTSF_VALIDN:
+ case CTSF_EVALIDN:
+ return s->valid;
+
+ case CTSF_MAXIMUM:
+ return s->max;
+
+ case CTSF_MINIMUM:
+ return s->min;
+
+ case CTSF_RANGE:
+ return s->max != SYSMIS && s->min != SYSMIS ? s->max - s->min : SYSMIS;
+
+ case CTSF_MEAN:
+ {
+ double mean;
+ moments1_calculate (s->moments, NULL, &mean, NULL, NULL, NULL);
+ return mean;
+ }
+
+ case CTSF_SEMEAN:
+ {
+ double weight, variance;
+ moments1_calculate (s->moments, &weight, NULL, &variance, NULL, NULL);
+ return calc_semean (variance, weight);
+ }
+
+ case CTSF_STDDEV:
+ {
+ double variance;
+ moments1_calculate (s->moments, NULL, NULL, &variance, NULL, NULL);
+ return variance != SYSMIS ? sqrt (variance) : SYSMIS;
+ }
+
+ case CTSF_SUM:
+ {
+ double weight, mean;
+ moments1_calculate (s->moments, &weight, &mean, NULL, NULL, NULL);
+ return weight != SYSMIS && mean != SYSMIS ? weight * mean : SYSMIS;
+ }
+
+ case CTSF_VARIANCE:
+ {
+ double variance;
+ moments1_calculate (s->moments, NULL, NULL, &variance, NULL, NULL);
+ return variance;
+ }
+
+ case CTSF_ROWPCT_SUM:
+ case CTSF_COLPCT_SUM:
+ case CTSF_TABLEPCT_SUM:
+ case CTSF_SUBTABLEPCT_SUM:
+ case CTSF_LAYERPCT_SUM:
+ case CTSF_LAYERROWPCT_SUM:
+ case CTSF_LAYERCOLPCT_SUM:
+ NOT_REACHED ();
+
+ case CTSF_MEDIAN:
+ case CTSF_MISSING:
+ case CTSF_MODE:
+ case CTSF_PTILE:
+ NOT_REACHED ();
+
+ case CTSF_RESPONSES:
+ case CTSF_ROWPCT_RESPONSES:
+ case CTSF_COLPCT_RESPONSES:
+ case CTSF_TABLEPCT_RESPONSES:
+ case CTSF_SUBTABLEPCT_RESPONSES:
+ case CTSF_LAYERPCT_RESPONSES:
+ case CTSF_LAYERROWPCT_RESPONSES:
+ case CTSF_LAYERCOLPCT_RESPONSES:
+ case CTSF_ROWPCT_RESPONSES_COUNT:
+ case CTSF_COLPCT_RESPONSES_COUNT:
+ case CTSF_TABLEPCT_RESPONSES_COUNT:
+ case CTSF_SUBTABLEPCT_RESPONSES_COUNT:
+ case CTSF_LAYERPCT_RESPONSES_COUNT:
+ case CTSF_LAYERROWPCT_RESPONSES_COUNT:
+ case CTSF_LAYERCOLPCT_RESPONSES_COUNT:
+ case CTSF_ROWPCT_COUNT_RESPONSES:
+ case CTSF_COLPCT_COUNT_RESPONSES:
+ case CTSF_TABLEPCT_COUNT_RESPONSES:
+ case CTSF_SUBTABLEPCT_COUNT_RESPONSES:
+ case CTSF_LAYERPCT_COUNT_RESPONSES:
+ case CTSF_LAYERROWPCT_COUNT_RESPONSES:
+ case CTSF_LAYERCOLPCT_COUNT_RESPONSES:
+ NOT_REACHED ();
+ }
+
+ NOT_REACHED ();
+}
+#endif
+
+struct ctables_freq
+ {
+ struct hmap_node node; /* Element in hash table. */
+
+ struct
+ {
+ size_t vaa_idx;
+ union value *values;
+ int leaf;
+ }
+ axes[PIVOT_N_AXES];
+
+ //union ctables_summary *summaries;
+ double count;
+ };
+
+#if 0
+static struct ctables_freq *
+ctables_freq_create (struct ctables_freqtab *ft)
+{
+ struct ctables_freq *f = xmalloc (sizeof *f + ft->vars.n * sizeof *f->values);
+ f->summaries = xmalloc (ft->n_summaries * sizeof *f->summaries);
+ for (size_t i = 0; i < ft->n_summaries; i++)
+ ctables_summary_init (&f->summaries[i], &ft->summaries[i]);
+ return f;
+}
+
+static void
+ctables_freq_add (struct ctables_freqtab *ft, struct ctables_freq *f,
+ const struct variable *var, const union value *value,
+ double weight)
+{
+ for (size_t i = 0; i < ft->n_summaries; i++)
+ ctables_summary_add (&f->summaries[i], &ft->summaries[i],
+ var, value, weight);
+}
+#endif
+
+struct ctables_freq_sort_aux
+ {
+ const struct ctables_table *t;
+ enum pivot_axis_type a;
+ };
+
+static int
+ctables_freq_compare_3way (const void *a_, const void *b_, const void *aux_)
+{
+ const struct ctables_freq_sort_aux *aux = aux_;
+ struct ctables_freq *const *ap = a_;
+ struct ctables_freq *const *bp = b_;
+ const struct ctables_freq *a = *ap;
+ const struct ctables_freq *b = *bp;
+
+ size_t a_idx = a->axes[aux->a].vaa_idx;
+ size_t b_idx = b->axes[aux->a].vaa_idx;
+ if (a_idx != b_idx)
+ return a_idx < b_idx ? -1 : 1;
+
+ const struct var_array *va = &aux->t->vaas[aux->a].vas[a_idx];
+ for (size_t i = 0; i < va->n; i++)
+ {
+ int cmp = value_compare_3way (&a->axes[aux->a].values[i],
+ &b->axes[aux->a].values[i],
+ var_get_width (va->vars[i]));
+ if (cmp)
+ return cmp;
+ }
+ return 0;
+}
+
+/* Algorithm:
+
+ For each row:
+ For each ctables_table:
+ For each combination of row vars:
+ For each combination of column vars:
+ For each combination of layer vars:
+ Add entry
+ Make a table of row values:
+ Sort entries by row values
+ Assign a 0-based index to each actual value
+ Construct a dimension
+ Make a table of column values
+ Make a table of layer values
+ For each entry:
+ Fill the table entry using the indexes from before.
+ */
+
+static void
+ctables_freqtab_insert (struct ctables_table *t,
+ const struct ccase *c,
+ size_t ir, size_t ic, size_t il,
+ double weight)
+{
+ size_t ix[PIVOT_N_AXES] = {
+ [PIVOT_AXIS_ROW] = ir,
+ [PIVOT_AXIS_COLUMN] = ic,
+ [PIVOT_AXIS_LAYER] = il,
+ };
+
+ size_t hash = 0;
+ for (enum pivot_axis_type a = 0; a < PIVOT_N_AXES; a++)
+ {
+ const struct var_array *va = &t->vaas[a].vas[ix[a]];
+ hash = hash_int (ix[a], hash);
+ for (size_t i = 0; i < va->n; i++)
+ hash = value_hash (case_data (c, va->vars[i]),
+ var_get_width (va->vars[i]), hash);
+ }
+
+ struct ctables_freq *f;
+ HMAP_FOR_EACH_WITH_HASH (f, struct ctables_freq, node, hash, &t->ft)
+ {
+ for (enum pivot_axis_type a = 0; a < PIVOT_N_AXES; a++)
+ {
+ const struct var_array *va = &t->vaas[a].vas[ix[a]];
+ if (f->axes[a].vaa_idx != ix[a])
+ goto not_equal;
+ for (size_t i = 0; i < va->n; i++)
+ if (!value_equal (case_data (c, va->vars[i]),
+ &f->axes[a].values[i],
+ var_get_width (va->vars[i])))
+ goto not_equal;
+ }
+
+ f->count += weight;
+ return;
+
+ not_equal: ;
+ }
+
+ f = xmalloc (sizeof *f);
+ for (enum pivot_axis_type a = 0; a < PIVOT_N_AXES; a++)
+ {
+ const struct var_array *va = &t->vaas[a].vas[ix[a]];
+ f->axes[a].vaa_idx = ix[a];
+ f->axes[a].values = (va->n
+ ? xnmalloc (va->n, sizeof *f->axes[a].values)
+ : NULL);
+ for (size_t i = 0; i < va->n; i++)
+ value_clone (&f->axes[a].values[i], case_data (c, va->vars[i]),
+ var_get_width (va->vars[i]));
+ }
+ f->count = weight;
+ hmap_insert (&t->ft, &f->node, hash);
+}
+
+static bool
+ctables_execute (struct dataset *ds, struct ctables *ct)
+{
+ for (size_t i = 0; i < ct->n_tables; i++)
+ {
+ struct ctables_table *t = ct->tables[i];
+ for (enum pivot_axis_type a = 0; a < PIVOT_N_AXES; a++)
+ if (t->axes[a])
+ t->vaas[a] = enumerate_fts (a, t->axes[a]);
+ else
+ {
+ struct var_array *va = xmalloc (sizeof *va);
+ *va = (struct var_array) { .n = 0 };
+ t->vaas[a] = (struct var_array2) { .vas = va, .n = 1 };
+ }
+
+ for (size_t i = 0; i < t->vaas[t->summary_axis].n; i++)
+ {
+ struct var_array *va = &t->vaas[t->summary_axis].vas[i];
+ if (!va->n_summaries)
+ {
+ va->summaries = xmalloc (sizeof *va->summaries);
+ va->n_summaries = 1;
+
+ enum ctables_summary_function function
+ = va->summary_var ? CTSF_MEAN : CTSF_COUNT;
+ struct ctables_var var = { .is_mrset = false, .var = va->summary_var };
+
+ *va->summaries = (struct ctables_summary_spec) {
+ .function = function,
+ .format = ctables_summary_default_format (function, &var),
+ .label = ctables_summary_default_label (function, 0),
+ };
+ if (!va->summary_var)
+ va->summary_var = va->vars[0];
+ }
+ }
+ }
+
+ struct casereader *input = casereader_create_filter_weight (proc_open (ds),
+ dataset_dict (ds),
+ NULL, NULL);
+ bool warn_on_invalid = true;
+ for (struct ccase *c = casereader_read (input); c;
+ case_unref (c), c = casereader_read (input))
+ {
+ double weight = dict_get_case_weight (dataset_dict (ds), c,
+ &warn_on_invalid);
+
+ for (size_t i = 0; i < ct->n_tables; i++)
+ {
+ struct ctables_table *t = ct->tables[i];
+
+ for (size_t ir = 0; ir < t->vaas[PIVOT_AXIS_ROW].n; ir++)
+ for (size_t ic = 0; ic < t->vaas[PIVOT_AXIS_COLUMN].n; ic++)
+ for (size_t il = 0; il < t->vaas[PIVOT_AXIS_LAYER].n; il++)
+ ctables_freqtab_insert (t, c, ir, ic, il, weight);
+ }
+ }
+ casereader_destroy (input);
+
+ for (size_t i = 0; i < ct->n_tables; i++)
+ {
+ struct ctables_table *t = ct->tables[i];
+
+ struct pivot_table *pt = pivot_table_create (N_("Custom Tables"));
+ pivot_table_set_look (pt, ct->look);
+ struct pivot_dimension *d[PIVOT_N_AXES];
+ for (enum pivot_axis_type a = 0; a < PIVOT_N_AXES; a++)
+ {
+ static const char *names[] = {
+ [PIVOT_AXIS_ROW] = N_("Rows"),
+ [PIVOT_AXIS_COLUMN] = N_("Columns"),
+ [PIVOT_AXIS_LAYER] = N_("Layers"),
+ };
+ d[a] = (t->axes[a] || a == t->summary_axis
+ ? pivot_dimension_create (pt, a, names[a])
+ : NULL);
+ if (!d[a])
+ continue;
+
+ assert (t->axes[a]);
+
+ struct ctables_freq **sorted = xnmalloc (t->ft.count, sizeof *sorted);
+
+ struct ctables_freq *f;
+ size_t n = 0;
+ HMAP_FOR_EACH (f, struct ctables_freq, node, &t->ft)
+ sorted[n++] = f;
+ assert (n == t->ft.count);
+
+ struct ctables_freq_sort_aux aux = { .t = t, .a = a };
+ sort (sorted, n, sizeof *sorted, ctables_freq_compare_3way, &aux);
+
+ size_t max_depth = 0;
+ for (size_t j = 0; j < t->vaas[a].n; j++)
+ if (t->vaas[a].vas[j].n > max_depth)
+ max_depth = t->vaas[a].vas[j].n;
+
+ struct pivot_category **groups = xnmalloc (max_depth, sizeof *groups);
+ struct pivot_category *top = NULL;
+ int prev_leaf = 0;
+ for (size_t j = 0; j < n; j++)
+ {
+ struct ctables_freq *f = sorted[j];
+ const struct var_array *va = &t->vaas[a].vas[f->axes[a].vaa_idx];
+
+ size_t n_common = 0;
+ bool new_subtable = false;
+ if (j > 0)
+ {
+ struct ctables_freq *prev = sorted[j - 1];
+ if (prev->axes[a].vaa_idx == f->axes[a].vaa_idx)
+ {
+ for (; n_common < va->n; n_common++)
+ if (!value_equal (&prev->axes[a].values[n_common],
+ &f->axes[a].values[n_common],
+ var_get_type (va->vars[n_common])))
+ break;
+ }
+ else
+ new_subtable = true;
+ }
+ else
+ new_subtable = true;
+
+ if (new_subtable)
+ {
+ enum ctables_vlabel vlabel = ct->vlabels[var_get_dict_index (va->vars[0])];
+ top = d[a]->root;
+ if (vlabel != CTVL_NONE)
+ top = pivot_category_create_group__ (
+ top, pivot_value_new_variable (va->vars[0]));
+ }
+ if (n_common == va->n)
+ {
+ f->axes[a].leaf = prev_leaf;
+ continue;
+ }
+
+ for (size_t k = n_common; k < va->n; k++)
+ {
+ struct pivot_category *parent = k > 0 ? groups[k - 1] : top;
+
+ struct pivot_value *label = pivot_value_new_var_value (
+ va->vars[k], &f->axes[a].values[k]);
+
+ if (k == va->n - 1)
+ {
+ if (a == t->summary_axis)
+ {
+ parent = pivot_category_create_group__ (parent, label);
+ for (size_t m = 0; m < va->n_summaries; m++)
+ {
+ int leaf = pivot_category_create_leaf (
+ parent, pivot_value_new_text (va->summaries[m].label));
+ if (m == 0)
+ prev_leaf = leaf;
+ }
+ }
+ else
+ prev_leaf = pivot_category_create_leaf (parent, label);
+ break;
+ }
+
+ parent = pivot_category_create_group__ (parent, label);
+
+ enum ctables_vlabel vlabel = ct->vlabels[var_get_dict_index (va->vars[k + 1])];
+ if (vlabel != CTVL_NONE)
+ parent = pivot_category_create_group__ (
+ parent, pivot_value_new_variable (va->vars[k + 1]));
+ groups[k] = parent;
+ }
+
+ f->axes[a].leaf = prev_leaf;
+ }
+ free (sorted);
+ free (groups);
+ }
+ struct ctables_freq *f;
+ HMAP_FOR_EACH (f, struct ctables_freq, node, &t->ft)
+ {
+ size_t dindexes[3];
+ size_t n_dindexes = 0;
+
+ for (enum pivot_axis_type a = 0; a < PIVOT_N_AXES; a++)
+ if (d[a])
+ dindexes[n_dindexes++] = f->axes[a].leaf;
+ pivot_table_put (pt, dindexes, n_dindexes,
+ pivot_value_new_number (f->count));
+ }
+
+ pivot_table_submit (pt);
+ }
+
+#if 0
+ for (size_t i = 0; i < ct->n_tables; i++)
+ {
+ struct ctables_table *t = ct->tables[i];
+
+ for (size_t j = 0; j < t->n_fts; j++)
+ {
+ struct ctables_freqtab *ft = t->fts[j];
+ struct ctables_freq *f, *next;
+ HMAP_FOR_EACH_SAFE (f, next, struct ctables_freq, node, &ft->data)
+ {
+ hmap_delete (&ft->data, &f->node);
+ for (size_t k = 0; k < ft->n_summaries; k++)
+ ctables_summary_uninit (&f->summaries[k], &ft->summaries[k]);
+ free (f->summaries);
+ for (size_t k = 0; k < ft->vars.n; k++)
+ {
+ const struct variable *var = ft->vars.vars[k];
+ value_destroy (&f->values[k], var_get_width (var));
+ }
+ free (f);
+ }
+ hmap_destroy (&ft->data);
+ var_array_uninit (&ft->vars);
+ free (ft);
+ }
+ free (t->fts);
+ }
+#endif
+
+ return proc_commit (ds);
+}
+