--- /dev/null
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include "data/case.h"
+#include "data/casegrouper.h"
+#include "data/casereader.h"
+#include "data/dataset.h"
+#include "data/dictionary.h"
+#include "data/format.h"
+#include "data/variable.h"
+
+#include "libpspp/hmap.h"
+#include "libpspp/bt.h"
+#include "libpspp/hash-functions.h"
+#include "libpspp/misc.h"
+#include "libpspp/pool.h"
+
+#include "language/command.h"
+#include "language/lexer/lexer.h"
+
+#include "count-one-bits.h"
+#include "count-leading-zeros.h"
+
+#include "output/pivot-table.h"
+
+#include "means.h"
+
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+#define N_(msgid) (msgid)
+
+
+/* A "cell" in this procedure represents a distinct value of the
+ procedure's categorical variables, and a set of summary statistics
+ of all cases which whose categorical variables have that set of
+ values. For example, the dataset
+
+ v1 v2 cat1 cat2
+ 100 202 0 1
+ 100 202 0 2
+ 100 202 1 0
+ 100 202 0 1
+
+
+ has three cells in layer 0 and two cells in layer 1 in addition
+ to a "grand summary" cell to which all (non-missing) cases
+ contribute.
+
+ The cells form a n-ary tree structure with the "grand summary"
+ cell at the root.
+*/
+struct cell
+{
+ struct hmap_node hmap_node; /* Element in hash table. */
+ struct bt_node bt_node; /* Element in binary tree */
+
+ int n_children;
+ struct cell_container *children;
+
+ /* The statistics to be calculated for the cell. */
+ struct statistic **stat;
+
+ /* The parent of this cell, or NULL if this is the root cell. */
+ const struct cell *parent_cell;
+
+ /* A bit-field variable which indicates which control variables
+ are allocated a fixed value (for this cell), and which are
+ "wildcards".
+
+ A one indicates a fixed value. A zero indicates a wildcard.
+ Wildcard values are used to calculate totals and sub-totals.
+ */
+ unsigned int not_wild;
+
+ /* The value(s). */
+ union value *values;
+
+ /* The variables corresponding to the above values. */
+ const struct variable **vars;
+};
+
+/* A structure used to find the union of all values used
+ within a layer, and to sort those values. */
+struct instance
+{
+ struct hmap_node hmap_node; /* Element in hash table. */
+ struct bt_node bt_node; /* Element in binary tree */
+
+ /* A unique, consecutive, zero based index identifying this
+ instance. */
+ int index;
+
+ /* The top level value of this instance. */
+ union value value;
+ const struct variable *var;
+};
+
+
+static void
+destroy_workspace (const struct mtable *mt, struct workspace *ws)
+{
+ for (int l = 0; l < mt->n_layers; ++l)
+ {
+ struct cell_container *instances = ws->instances + l;
+ struct instance *inst;
+ struct instance *next;
+ HMAP_FOR_EACH_SAFE (inst, next, struct instance, hmap_node,
+ &instances->map)
+ {
+ int width = var_get_width (inst->var);
+ value_destroy (&inst->value, width);
+ free (inst);
+ }
+ hmap_destroy (&instances->map);
+ }
+ free (ws->control_idx);
+ free (ws->instances);
+}
+
+/* Destroy CELL. */
+static void
+destroy_cell (const struct means *means,
+ const struct mtable *mt, struct cell *cell)
+{
+ int idx = 0;
+ for (int i = 0; i < mt->n_layers; ++i)
+ {
+ if (0 == ((cell->not_wild >> i) & 0x1))
+ continue;
+
+ const struct layer *layer = mt->layers[i];
+ for (int cmb = 0; cmb < mt->n_combinations; ++cmb)
+ {
+ struct workspace *ws = mt->ws + cmb;
+ const struct variable *var
+ = layer->factor_vars[ws->control_idx[i]];
+
+ int width = var_get_width (var);
+ value_destroy (&cell->values[idx++], width);
+ }
+ }
+ for (int i = 0; i < cell->n_children; ++i)
+ {
+ struct cell_container *container = cell->children + i;
+ hmap_destroy (&container->map);
+ }
+
+ for (int v = 0; v < mt->n_dep_vars; ++v)
+ {
+ for (int s = 0; s < means->n_statistics; ++s)
+ {
+ stat_destroy *des = cell_spec[means->statistics[s]].sf;
+ des (cell->stat[s + v * means->n_statistics]);
+ }
+ }
+ free (cell->stat);
+
+ free (cell->children);
+ free (cell->values);
+ free (cell->vars);
+ free (cell);
+}
+
+
+/* Walk the tree in postorder starting from CELL and destroy all the
+ cells. */
+static void
+means_destroy_cells (const struct means *means, struct cell *cell,
+ const struct mtable *table)
+{
+ for (int i = 0; i < cell->n_children; ++i)
+ {
+ struct cell_container *container = cell->children + i;
+ struct cell *sub_cell;
+ struct cell *next;
+ HMAP_FOR_EACH_SAFE (sub_cell, next, struct cell, hmap_node,
+ &container->map)
+ {
+ means_destroy_cells (means, sub_cell, table);
+ }
+ }
+
+ destroy_cell (means, table, cell);
+}
+
+#if 0
+
+static void
+dump_cell (const struct cell *cell, const struct mtable *mt, int level)
+{
+ for (int l = 0; l < level; ++l)
+ putchar (' ');
+ printf ("%p: ", cell);
+ for (int i = 0; i < mt->n_layers; ++i)
+ {
+ putchar (((cell->not_wild >> i) & 0x1) ? 'w' : '.');
+ }
+ printf (" - ");
+ int x = 0;
+ for (int i = 0; i < mt->n_layers; ++i)
+ {
+ if ((cell->not_wild >> i) & 0x1)
+ {
+ printf ("%s: ", var_get_name (cell->vars[x]));
+ printf ("%g ", cell->values[x++].f);
+ }
+ else
+ printf ("x ");
+ }
+ stat_get *sg = cell_spec[MEANS_N].sd;
+ printf ("--- S1: %g", sg (cell->stat[0]));
+
+ printf ("--- N Children: %d", cell->n_children);
+ // printf ("--- Level: %d", level);
+ printf ("--- Parent: %p", cell->parent_cell);
+ printf ("\n");
+}
+
+static void
+dump_indeces (const size_t *indexes, int n)
+{
+ for (int i = 0; i < n; ++i)
+ {
+ printf ("%ld; ", indexes[i]);
+ }
+ printf ("\n");
+}
+
+/* Dump the tree in pre-order. */
+static void
+dump_tree (const struct cell *cell, const struct mtable *table,
+ int level, const struct cell *parent)
+{
+ assert (cell->parent_cell == parent);
+ dump_cell (cell, table, level);
+
+ for (int i = 0; i < cell->n_children; ++i)
+ {
+ struct cell_container *container = cell->children + i;
+ struct cell *sub_cell;
+ BT_FOR_EACH (sub_cell, struct cell, bt_node, &container->bt)
+ {
+ dump_tree (sub_cell, table, level + 1, cell);
+ }
+ }
+}
+
+#endif
+
+/* Generate a hash based on the values of the N variables in
+ the array VARS which are taken from the case C. */
+static unsigned int
+generate_hash (const struct mtable *mt,
+ const struct ccase *c,
+ unsigned int not_wild,
+ const struct workspace *ws)
+{
+ unsigned int hash = 0;
+ for (int i = 0; i < mt->n_layers; ++i)
+ {
+ if (0 == ((not_wild >> i) & 0x1))
+ continue;
+
+ const struct layer *layer = mt->layers[i];
+ const struct variable *var = layer->factor_vars[ws->control_idx[i]];
+ const union value *vv = case_data (c, var);
+ int width = var_get_width (var);
+ hash = hash_int (i, hash);
+ hash = value_hash (vv, width, hash);
+ }
+
+ return hash;
+}
+
+/* Create a cell based on the N variables in the array VARS,
+ which are indeces into the case C.
+ The caller is responsible for destroying this cell when
+ no longer needed. */
+static struct cell *
+generate_cell (const struct means *means,
+ const struct mtable *mt,
+ const struct ccase *c,
+ unsigned int not_wild,
+ const struct cell *pcell,
+ const struct workspace *ws)
+{
+ int n_vars = count_one_bits (not_wild);
+ struct cell *cell = XZALLOC (struct cell);
+ cell->values = xcalloc (n_vars, sizeof *cell->values);
+ cell->vars = xcalloc (n_vars, sizeof *cell->vars);
+ cell->not_wild = not_wild;
+
+ cell->parent_cell = pcell;
+ cell->n_children = mt->n_layers -
+ (sizeof (cell->not_wild) * CHAR_BIT) +
+ count_leading_zeros (cell->not_wild);
+
+ int idx = 0;
+ for (int i = 0; i < mt->n_layers; ++i)
+ {
+ if (0 == ((not_wild >> i) & 0x1))
+ continue;
+
+ const struct layer *layer = mt->layers[i];
+ const struct variable *var = layer->factor_vars[ws->control_idx[i]];
+ const union value *vv = case_data (c, var);
+ int width = var_get_width (var);
+ cell->vars[idx] = var;
+ value_clone (&cell->values[idx++], vv, width);
+ }
+ assert (idx == n_vars);
+
+ cell->children = xcalloc (cell->n_children, sizeof *cell->children);
+ for (int i = 0; i < cell->n_children; ++i)
+ {
+ struct cell_container *container = cell->children + i;
+ hmap_init (&container->map);
+ }
+
+ cell->stat = xcalloc (means->n_statistics * mt->n_dep_vars, sizeof *cell->stat);
+ for (int v = 0; v < mt->n_dep_vars; ++v)
+ {
+ for (int stat = 0; stat < means->n_statistics; ++stat)
+ {
+ stat_create *sc = cell_spec[means->statistics[stat]].sc;
+
+ cell->stat[stat + v * means->n_statistics] = sc (means->pool);
+ }
+ }
+ return cell;
+}
+
+
+/* If a cell based on the N variables in the array VARS,
+ which are indeces into the case C and whose hash is HASH,
+ exists in HMAP, then return that cell.
+ Otherwise, return NULL. */
+static struct cell *
+lookup_cell (const struct mtable *mt,
+ struct hmap *hmap, unsigned int hash,
+ const struct ccase *c,
+ unsigned int not_wild,
+ const struct workspace *ws)
+{
+ struct cell *cell = NULL;
+ HMAP_FOR_EACH_WITH_HASH (cell, struct cell, hmap_node, hash, hmap)
+ {
+ bool match = true;
+ int idx = 0;
+ if (cell->not_wild != not_wild)
+ continue;
+ for (int i = 0; i < mt->n_layers; ++i)
+ {
+ if (0 == ((cell->not_wild >> i) & 0x1))
+ continue;
+
+ const struct layer *layer = mt->layers[i];
+ const struct variable *var = layer->factor_vars[ws->control_idx[i]];
+ const union value *vv = case_data (c, var);
+ int width = var_get_width (var);
+ assert (var == cell->vars[idx]);
+ if (!value_equal (vv, &cell->values[idx++], width))
+ {
+ match = false;
+ break;
+ }
+ }
+ if (match)
+ return cell;
+ }
+ return NULL;
+}
+
+
+/* A comparison function used to sort cells in a binary tree.
+ Only the innermost value needs to be compared, because no
+ two cells with similar outer values will appear in the same
+ tree/map. */
+static int
+cell_compare_3way (const struct bt_node *a,
+ const struct bt_node *b,
+ const void *aux UNUSED)
+{
+ const struct cell *fa = BT_DATA (a, struct cell, bt_node);
+ const struct cell *fb = BT_DATA (b, struct cell, bt_node);
+
+ assert (fa->not_wild == fb->not_wild);
+ int vidx = count_one_bits (fa->not_wild) - 1;
+ assert (fa->vars[vidx] == fb->vars[vidx]);
+
+ return value_compare_3way (&fa->values[vidx],
+ &fb->values[vidx],
+ var_get_width (fa->vars[vidx]));
+}
+
+/* A comparison function used to sort cells in a binary tree. */
+static int
+compare_instance_3way (const struct bt_node *a,
+ const struct bt_node *b,
+ const void *aux UNUSED)
+{
+ const struct instance *fa = BT_DATA (a, struct instance, bt_node);
+ const struct instance *fb = BT_DATA (b, struct instance, bt_node);
+
+ assert (fa->var == fb->var);
+
+ return value_compare_3way (&fa->value,
+ &fb->value,
+ var_get_width (fa->var));
+}
+
+
+static void arrange_cells (struct workspace *ws,
+ struct cell *cell, const struct mtable *table);
+
+
+/* Iterate CONTAINER's map inserting a copy of its elements into
+ CONTAINER's binary tree. Also, for each layer in TABLE, create
+ an instance container, containing the union of all elements in
+ CONTAINER. */
+static void
+arrange_cell (struct workspace *ws, struct cell_container *container,
+ const struct mtable *mt)
+{
+ struct bt *bt = &container->bt;
+ struct hmap *map = &container->map;
+ bt_init (bt, cell_compare_3way, NULL);
+
+ struct cell *cell;
+ HMAP_FOR_EACH (cell, struct cell, hmap_node, map)
+ {
+ bt_insert (bt, &cell->bt_node);
+
+ int idx = 0;
+ for (int i = 0; i < mt->n_layers; ++i)
+ {
+ if (0 == ((cell->not_wild >> i) & 0x1))
+ continue;
+
+ struct cell_container *instances = ws->instances + i;
+ const struct variable *var = cell->vars[idx];
+ int width = var_get_width (var);
+ unsigned int hash
+ = value_hash (&cell->values[idx], width, 0);
+
+ struct instance *inst = NULL;
+ struct instance *next = NULL;
+ HMAP_FOR_EACH_WITH_HASH_SAFE (inst, next, struct instance,
+ hmap_node,
+ hash, &instances->map)
+ {
+ assert (cell->vars[idx] == var);
+ if (value_equal (&inst->value,
+ &cell->values[idx],
+ width))
+ {
+ break;
+ }
+ }
+
+ if (!inst)
+ {
+ inst = xzalloc (sizeof *inst);
+ inst->index = -1;
+ inst->var = var;
+ value_clone (&inst->value, &cell->values[idx],
+ width);
+ hmap_insert (&instances->map, &inst->hmap_node, hash);
+ }
+
+ idx++;
+ }
+
+ arrange_cells (ws, cell, mt);
+ }
+}
+
+/* Arrange the children and then all the subtotals. */
+static void
+arrange_cells (struct workspace *ws, struct cell *cell,
+ const struct mtable *table)
+{
+ for (int i = 0; i < cell->n_children; ++i)
+ {
+ struct cell_container *container = cell->children + i;
+ arrange_cell (ws, container, table);
+ }
+}
+
+
+\f
+
+/* If the top level value in CELL, has an instance in the L_IDX'th layer,
+ then return that instance. Otherwise return NULL. */
+static const struct instance *
+lookup_instance (const struct mtable *mt, const struct workspace *ws,
+ int l_idx, const struct cell *cell)
+{
+ const struct layer *layer = mt->layers[l_idx];
+ int n_vals = count_one_bits (cell->not_wild);
+ const struct variable *var = layer->factor_vars[ws->control_idx[l_idx]];
+ const union value *val = cell->values + n_vals - 1;
+ int width = var_get_width (var);
+ unsigned int hash = value_hash (val, width, 0);
+ const struct cell_container *instances = ws->instances + l_idx;
+ struct instance *inst = NULL;
+ struct instance *next;
+ HMAP_FOR_EACH_WITH_HASH_SAFE (inst, next,
+ struct instance, hmap_node,
+ hash, &instances->map)
+ {
+ if (value_equal (val, &inst->value, width))
+ break;
+ }
+ return inst;
+}
+
+/* Enter the values into PT. */
+static void
+populate_table (const struct means *means, const struct mtable *mt,
+ const struct workspace *ws,
+ const struct cell *cell,
+ struct pivot_table *pt)
+{
+ size_t *indexes = XCALLOC (pt->n_dimensions, size_t);
+ for (int v = 0; v < mt->n_dep_vars; ++v)
+ {
+ for (int s = 0; s < means->n_statistics; ++s)
+ {
+ int i = 0;
+ if (mt->n_dep_vars > 1)
+ indexes[i++] = v;
+ indexes[i++] = s;
+ int stat = means->statistics[s];
+ stat_get *sg = cell_spec[stat].sd;
+ {
+ const struct cell *pc = cell;
+ for (; i < pt->n_dimensions; ++i)
+ {
+ int l_idx = pt->n_dimensions - i - 1;
+ const struct cell_container *instances = ws->instances + l_idx;
+ if (0 == (cell->not_wild >> l_idx & 0x1U))
+ {
+ indexes [i] = hmap_count (&instances->map);
+ }
+ else
+ {
+ assert (pc);
+ const struct instance *inst
+ = lookup_instance (mt, ws, l_idx, pc);
+ assert (inst);
+ indexes [i] = inst->index;
+ pc = pc->parent_cell;
+ }
+ }
+ }
+
+ int idx = s + v * means->n_statistics;
+ struct pivot_value *pv
+ = pivot_value_new_number (sg (cell->stat[idx]));
+ if (NULL == cell_spec[stat].rc)
+ {
+ const struct variable *dv = mt->dep_vars[v];
+ pv->numeric.format = * var_get_print_format (dv);
+ }
+ pivot_table_put (pt, indexes, pt->n_dimensions, pv);
+ }
+ }
+ free (indexes);
+
+ for (int i = 0; i < cell->n_children; ++i)
+ {
+ struct cell_container *container = cell->children + i;
+ struct cell *child = NULL;
+ BT_FOR_EACH (child, struct cell, bt_node, &container->bt)
+ {
+ populate_table (means, mt, ws, child, pt);
+ }
+ }
+}
+
+static void
+create_table_structure (const struct mtable *mt, struct pivot_table *pt,
+ const struct workspace *ws)
+{
+ int * lindexes = ws->control_idx;
+ /* The inner layers are situated rightmost in the table.
+ So this iteration is in reverse order. */
+ for (int l = mt->n_layers - 1; l >= 0; --l)
+ {
+ const struct layer *layer = mt->layers[l];
+ const struct cell_container *instances = ws->instances + l;
+ const struct variable *var = layer->factor_vars[lindexes[l]];
+ struct pivot_dimension *dim_layer
+ = pivot_dimension_create (pt, PIVOT_AXIS_ROW,
+ var_to_string (var));
+ dim_layer->root->show_label = true;
+
+ /* Place the values of the control variables as table headings. */
+ {
+ struct instance *inst = NULL;
+ BT_FOR_EACH (inst, struct instance, bt_node, &instances->bt)
+ {
+ struct substring space = SS_LITERAL_INITIALIZER ("\t ");
+ struct string str;
+ ds_init_empty (&str);
+ var_append_value_name (var,
+ &inst->value,
+ &str);
+
+ ds_ltrim (&str, space);
+
+ pivot_category_create_leaf (dim_layer->root,
+ pivot_value_new_text (ds_cstr (&str)));
+
+ ds_destroy (&str);
+ }
+ }
+
+ pivot_category_create_leaf (dim_layer->root,
+ pivot_value_new_text ("Total"));
+ }
+}
+
+/* Initialise C_DES with a string describing the control variable
+ relating to MT, LINDEXES. */
+static void
+layers_to_string (const struct mtable *mt, const int *lindexes,
+ struct string *c_des)
+{
+ for (int l = 0; l < mt->n_layers; ++l)
+ {
+ const struct layer *layer = mt->layers[l];
+ const struct variable *ctrl_var = layer->factor_vars[lindexes[l]];
+ if (l > 0)
+ ds_put_cstr (c_des, " * ");
+ ds_put_cstr (c_des, var_get_name (ctrl_var));
+ }
+}
+
+static void
+populate_case_processing_summary (struct pivot_category *pc,
+ const struct mtable *mt,
+ const int *lindexes)
+{
+ struct string ds;
+ ds_init_empty (&ds);
+ int l = 0;
+ for (l = 0; l < mt->n_layers; ++l)
+ {
+ const struct layer *layer = mt->layers[l];
+ const struct variable *ctrl_var = layer->factor_vars[lindexes[l]];
+ if (l > 0)
+ ds_put_cstr (&ds, " * ");
+ ds_put_cstr (&ds, var_get_name (ctrl_var));
+ }
+ for (int dv = 0; dv < mt->n_dep_vars; ++dv)
+ {
+ struct string dss;
+ ds_init_empty (&dss);
+ ds_put_cstr (&dss, var_get_name (mt->dep_vars[dv]));
+ if (mt->n_layers > 0)
+ {
+ ds_put_cstr (&dss, " * ");
+ ds_put_substring (&dss, ds.ss);
+ }
+ pivot_category_create_leaf (pc,
+ pivot_value_new_text (ds_cstr (&dss)));
+ ds_destroy (&dss);
+ }
+
+ ds_destroy (&ds);
+}
+
+/* Create the "Case Processing Summary" table. */
+static void
+means_case_processing_summary (const struct mtable *mt)
+{
+ struct pivot_table *pt = pivot_table_create (N_("Case Processing Summary"));
+
+ struct pivot_dimension *dim_cases =
+ pivot_dimension_create (pt, PIVOT_AXIS_COLUMN, N_("Cases"));
+ dim_cases->root->show_label = true;
+
+ struct pivot_category *cats[3];
+ cats[0] = pivot_category_create_group (dim_cases->root,
+ N_("Included"), NULL);
+ cats[1] = pivot_category_create_group (dim_cases->root,
+ N_("Excluded"), NULL);
+ cats[2] = pivot_category_create_group (dim_cases->root,
+ N_("Total"), NULL);
+ for (int i = 0; i < 3; ++i)
+ {
+ pivot_category_create_leaf_rc (cats[i],
+ pivot_value_new_text (N_("N")),
+ PIVOT_RC_COUNT);
+ pivot_category_create_leaf_rc (cats[i],
+ pivot_value_new_text (N_("Percent")),
+ PIVOT_RC_PERCENT);
+ }
+
+ struct pivot_dimension *rows =
+ pivot_dimension_create (pt, PIVOT_AXIS_ROW, N_("Variables"));
+
+ for (int cmb = 0; cmb < mt->n_combinations; ++cmb)
+ {
+ const struct workspace *ws = mt->ws + cmb;
+ populate_case_processing_summary (rows->root, mt, ws->control_idx);
+ for (int dv = 0; dv < mt->n_dep_vars; ++dv)
+ {
+ int idx = cmb * mt->n_dep_vars + dv;
+ const struct summary *summ = mt->summ + idx;
+ double n_included = summ->n_total - summ->n_missing;
+ pivot_table_put2 (pt, 5, idx,
+ pivot_value_new_number (100.0 * summ->n_total / summ->n_total));
+ pivot_table_put2 (pt, 4, idx,
+ pivot_value_new_number (summ->n_total));
+
+ pivot_table_put2 (pt, 3, idx,
+ pivot_value_new_number (100.0 * summ->n_missing / summ->n_total));
+ pivot_table_put2 (pt, 2, idx,
+ pivot_value_new_number (summ->n_missing));
+
+ pivot_table_put2 (pt, 1, idx,
+ pivot_value_new_number (100.0 * n_included / summ->n_total));
+ pivot_table_put2 (pt, 0, idx,
+ pivot_value_new_number (n_included));
+ }
+ }
+
+ pivot_table_submit (pt);
+}
+
+static void
+means_shipout_single (const struct mtable *mt, const struct means *means,
+ const struct workspace *ws)
+{
+ struct pivot_table *pt = pivot_table_create (N_("Report"));
+
+ struct pivot_dimension *dim_cells =
+ pivot_dimension_create (pt, PIVOT_AXIS_COLUMN, N_("Statistics"));
+
+ /* Set the statistics headings, eg "Mean", "Std. Dev" etc. */
+ for (int i = 0; i < means->n_statistics; ++i)
+ {
+ const struct cell_spec *cs = cell_spec + means->statistics[i];
+ pivot_category_create_leaf_rc
+ (dim_cells->root,
+ pivot_value_new_text (gettext (cs->title)), cs->rc);
+ }
+
+ create_table_structure (mt, pt, ws);
+ populate_table (means, mt, ws, ws->root_cell, pt);
+ pivot_table_submit (pt);
+}
+
+
+static void
+means_shipout_multivar (const struct mtable *mt, const struct means *means,
+ const struct workspace *ws)
+{
+ struct string dss;
+ ds_init_empty (&dss);
+ for (int dv = 0; dv < mt->n_dep_vars; ++dv)
+ {
+ if (dv > 0)
+ ds_put_cstr (&dss, " * ");
+ ds_put_cstr (&dss, var_get_name (mt->dep_vars[dv]));
+ }
+
+ for (int l = 0; l < mt->n_layers; ++l)
+ {
+ ds_put_cstr (&dss, " * ");
+ const struct layer *layer = mt->layers[l];
+ const struct variable *var = layer->factor_vars[ws->control_idx[l]];
+ ds_put_cstr (&dss, var_get_name (var));
+ }
+
+ struct pivot_table *pt = pivot_table_create (ds_cstr (&dss));
+ ds_destroy (&dss);
+
+ struct pivot_dimension *dim_cells =
+ pivot_dimension_create (pt, PIVOT_AXIS_COLUMN, N_("Variables"));
+
+ for (int i = 0; i < mt->n_dep_vars; ++i)
+ {
+ pivot_category_create_leaf
+ (dim_cells->root,
+ pivot_value_new_variable (mt->dep_vars[i]));
+ }
+
+ struct pivot_dimension *dim_stats
+ = pivot_dimension_create (pt, PIVOT_AXIS_ROW,
+ N_ ("Statistics"));
+ dim_stats->root->show_label = false;
+
+ for (int i = 0; i < means->n_statistics; ++i)
+ {
+ const struct cell_spec *cs = cell_spec + means->statistics[i];
+ pivot_category_create_leaf_rc
+ (dim_stats->root,
+ pivot_value_new_text (gettext (cs->title)), cs->rc);
+ }
+
+ create_table_structure (mt, pt, ws);
+ populate_table (means, mt, ws, ws->root_cell, pt);
+ pivot_table_submit (pt);
+}
+
+static void
+means_shipout (const struct mtable *mt, const struct means *means)
+{
+ for (int cmb = 0; cmb < mt->n_combinations; ++cmb)
+ {
+ const struct workspace *ws = mt->ws + cmb;
+ if (ws->root_cell == NULL)
+ {
+ struct string des;
+ ds_init_empty (&des);
+ layers_to_string (mt, ws->control_idx, &des);
+ msg (MW, _("The table \"%s\" has no non-empty control variables."
+ " No result for this table will be displayed."),
+ ds_cstr (&des));
+ ds_destroy (&des);
+ continue;
+ }
+ if (mt->n_dep_vars > 1)
+ means_shipout_multivar (mt, means, ws);
+ else
+ means_shipout_single (mt, means, ws);
+ }
+}
+
+
+\f
+
+static bool
+control_var_missing (const struct means *means,
+ const struct mtable *mt,
+ unsigned int not_wild UNUSED,
+ const struct ccase *c,
+ const struct workspace *ws)
+{
+ bool miss = false;
+ for (int l = 0; l < mt->n_layers; ++l)
+ {
+ /* if (0 == ((not_wild >> l) & 0x1)) */
+ /* { */
+ /* continue; */
+ /* } */
+
+ const struct layer *layer = mt->layers[l];
+ const struct variable *var = layer->factor_vars[ws->control_idx[l]];
+ const union value *vv = case_data (c, var);
+
+ miss = (var_is_value_missing (var, vv) & means->ctrl_exclude) != 0;
+ if (miss)
+ break;
+ }
+
+ return miss;
+}
+
+/* Lookup the set of control variables described by MT, C and NOT_WILD,
+ in the hash table MAP. If there is no such entry, then create a
+ cell with these paremeters and add is to MAP.
+ If the generated cell has childen, repeat for all the children.
+ Returns the root cell.
+*/
+static struct cell *
+service_cell_map (const struct means *means, const struct mtable *mt,
+ const struct ccase *c,
+ unsigned int not_wild,
+ struct hmap *map,
+ const struct cell *pcell,
+ int level,
+ const struct workspace *ws)
+{
+ struct cell *cell = NULL;
+ if (map)
+ {
+ if (!control_var_missing (means, mt, not_wild, c, ws))
+ {
+ /* Lookup this set of values in the cell's hash table. */
+ unsigned int hash = generate_hash (mt, c, not_wild, ws);
+ cell = lookup_cell (mt, map, hash, c, not_wild, ws);
+
+ /* If it has not been seen before, then create a new
+ subcell, with this set of values, and insert it
+ into the table. */
+ if (cell == NULL)
+ {
+ cell = generate_cell (means, mt, c, not_wild, pcell, ws);
+ hmap_insert (map, &cell->hmap_node, hash);
+ }
+ }
+ }
+ else
+ {
+ /* This condition should only happen in the root node case. */
+ cell = ws->root_cell;
+ if (cell == NULL &&
+ !control_var_missing (means, mt, not_wild, c, ws))
+ cell = generate_cell (means, mt, c, not_wild, pcell, ws);
+ }
+
+ if (cell)
+ {
+ /* Here is where the business really happens! After
+ testing for missing values, the cell's statistics
+ are accumulated. */
+ if (!control_var_missing (means, mt, not_wild, c, ws))
+ {
+ for (int v = 0; v < mt->n_dep_vars; ++v)
+ {
+ const struct variable *dep_var = mt->dep_vars[v];
+ const union value *vv = case_data (c, dep_var);
+ if (var_is_value_missing (dep_var, vv) & means->dep_exclude)
+ continue;
+
+ for (int stat = 0; stat < means->n_statistics; ++stat)
+ {
+ const double weight = dict_get_case_weight (means->dict, c,
+ NULL);
+ stat_update *su = cell_spec[means->statistics[stat]].su;
+ su (cell->stat[stat + v * means->n_statistics], weight,
+ case_num (c, dep_var));
+ }
+ }
+ }
+
+ /* Recurse into all the children (if there are any). */
+ for (int i = 0; i < cell->n_children; ++i)
+ {
+ struct cell_container *cc = cell->children + i;
+ service_cell_map (means, mt, c,
+ not_wild | (0x1U << (i + level)),
+ &cc->map, cell, level + i + 1, ws);
+ }
+ }
+
+ return cell;
+}
+
+/* Do all the necessary preparation and pre-calculation that
+ needs to be done before iterating the data. */
+static void
+prepare_means (struct means *cmd)
+{
+ for (int t = 0; t < cmd->n_tables; ++t)
+ {
+ struct mtable *mt = cmd->table + t;
+
+ for (int i = 0; i < mt->n_combinations; ++i)
+ {
+ struct workspace *ws = mt->ws + i;
+ ws->root_cell = NULL;
+ ws->control_idx = xcalloc (mt->n_layers, sizeof *ws->control_idx);
+ ws->instances = xcalloc (mt->n_layers, sizeof *ws->instances);
+ int cmb = i;
+ for (int l = mt->n_layers - 1; l >= 0; --l)
+ {
+ struct cell_container *instances = ws->instances + l;
+ const struct layer *layer = mt->layers[l];
+ ws->control_idx[l] = cmb % layer->n_factor_vars;
+ cmb /= layer->n_factor_vars;
+ hmap_init (&instances->map);
+ }
+ }
+ }
+}
+
+
+/* Do all the necessary calculations that occur AFTER iterating
+ the data. */
+static void
+post_means (struct means *cmd)
+{
+ for (int t = 0; t < cmd->n_tables; ++t)
+ {
+ struct mtable *mt = cmd->table + t;
+ for (int cmb = 0; cmb < mt->n_combinations; ++cmb)
+ {
+ struct workspace *ws = mt->ws + cmb;
+ if (ws->root_cell == NULL)
+ continue;
+ arrange_cells (ws, ws->root_cell, mt);
+ /* The root cell should have no parent. */
+ assert (ws->root_cell->parent_cell == 0);
+
+ for (int l = 0; l < mt->n_layers; ++l)
+ {
+ struct cell_container *instances = ws->instances + l;
+ bt_init (&instances->bt, compare_instance_3way, NULL);
+
+ /* Iterate the instance hash table, and insert each instance
+ into the binary tree BT. */
+ struct instance *inst;
+ HMAP_FOR_EACH (inst, struct instance, hmap_node,
+ &instances->map)
+ {
+ bt_insert (&instances->bt, &inst->bt_node);
+ }
+
+ /* Iterate the binary tree (in order) and assign the index
+ member accordingly. */
+ int index = 0;
+ BT_FOR_EACH (inst, struct instance, bt_node, &instances->bt)
+ {
+ inst->index = index++;
+ }
+ }
+ }
+ }
+}
+
+
+/* Update the summary information (the missings and the totals). */
+static void
+update_summaries (const struct means *means, struct mtable *mt,
+ const struct ccase *c, double weight)
+{
+ for (int dv = 0; dv < mt->n_dep_vars; ++dv)
+ {
+ for (int cmb = 0; cmb < mt->n_combinations; ++cmb)
+ {
+ struct workspace *ws = mt->ws + cmb;
+ struct summary *summ = mt->summ
+ + cmb * mt->n_dep_vars + dv;
+
+ summ->n_total += weight;
+ const struct variable *var = mt->dep_vars[dv];
+ const union value *vv = case_data (c, var);
+ /* First check if the dependent variable is missing. */
+ if (var_is_value_missing (var, vv) & means->dep_exclude)
+ summ->n_missing += weight;
+ /* If the dep var is not missing, then check each
+ control variable. */
+ else
+ for (int l = 0; l < mt->n_layers; ++l)
+ {
+ const struct layer *layer = mt->layers [l];
+ const struct variable *var
+ = layer->factor_vars[ws->control_idx[l]];
+ const union value *vv = case_data (c, var);
+ if (var_is_value_missing (var, vv) & means->ctrl_exclude)
+ {
+ summ->n_missing += weight;
+ break;
+ }
+ }
+ }
+ }
+}
+
+
+void
+run_means (struct means *cmd, struct casereader *input,
+ const struct dataset *ds UNUSED)
+{
+ struct ccase *c = NULL;
+ struct casereader *reader;
+
+ prepare_means (cmd);
+
+ for (reader = input;
+ (c = casereader_read (reader)) != NULL; case_unref (c))
+ {
+ const double weight
+ = dict_get_case_weight (cmd->dict, c, NULL);
+ for (int t = 0; t < cmd->n_tables; ++t)
+ {
+ struct mtable *mt = cmd->table + t;
+ update_summaries (cmd, mt, c, weight);
+
+ for (int cmb = 0; cmb < mt->n_combinations; ++cmb)
+ {
+ struct workspace *ws = mt->ws + cmb;
+
+ ws->root_cell = service_cell_map (cmd, mt, c,
+ 0U, NULL, NULL, 0, ws);
+ }
+ }
+ }
+ casereader_destroy (reader);
+
+ post_means (cmd);
+}
+
+int
+cmd_means (struct lexer *lexer, struct dataset *ds)
+{
+ struct means means = {
+ .pool = pool_create (),
+ .ctrl_exclude = MV_ANY,
+ .dep_exclude = MV_ANY,
+ .dict = dataset_dict (ds),
+ };
+ means_set_default_statistics (&means);
+
+ if (!means_parse (lexer, &means))
+ goto error;
+
+ /* Calculate some constant data for each table. */
+ for (int t = 0; t < means.n_tables; ++t)
+ {
+ struct mtable *mt = means.table + t;
+ mt->n_combinations = 1;
+ for (int l = 0; l < mt->n_layers; ++l)
+ mt->n_combinations *= mt->layers[l]->n_factor_vars;
+ }
+
+ struct casegrouper *grouper
+ = casegrouper_create_splits (proc_open (ds), means.dict);
+ struct casereader *group;
+ while (casegrouper_get_next_group (grouper, &group))
+ {
+ /* Allocate the workspaces. */
+ for (int t = 0; t < means.n_tables; ++t)
+ {
+ struct mtable *mt = means.table + t;
+ mt->summ = xcalloc (mt->n_combinations * mt->n_dep_vars,
+ sizeof *mt->summ);
+ mt->ws = xcalloc (mt->n_combinations, sizeof *mt->ws);
+ }
+ run_means (&means, group, ds);
+ for (int t = 0; t < means.n_tables; ++t)
+ {
+ const struct mtable *mt = means.table + t;
+
+ means_case_processing_summary (mt);
+ means_shipout (mt, &means);
+
+ for (int i = 0; i < mt->n_combinations; ++i)
+ {
+ struct workspace *ws = mt->ws + i;
+ if (ws->root_cell)
+ means_destroy_cells (&means, ws->root_cell, mt);
+ }
+ }
+
+ /* Destroy the workspaces. */
+ for (int t = 0; t < means.n_tables; ++t)
+ {
+ struct mtable *mt = means.table + t;
+ free (mt->summ);
+ for (int i = 0; i < mt->n_combinations; ++i)
+ {
+ struct workspace *ws = mt->ws + i;
+ destroy_workspace (mt, ws);
+ }
+ free (mt->ws);
+ }
+ }
+
+ bool ok = casegrouper_destroy (grouper);
+ ok = proc_commit (ds) && ok;
+ if (!ok)
+ goto error;
+
+ pool_destroy (means.pool);
+ return CMD_SUCCESS;
+
+ error:
+ pool_destroy (means.pool);
+ return CMD_FAILURE;
+}
projects / pspp / blobdiff