+++ /dev/null
-/* PSPP - a program for statistical analysis.
- Copyright (C) 2011, 2012, 2013, 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/>. */
-
-#ifndef MEANS_H
-#define MEANS_H
-
-#include "libpspp/hmap.h"
-#include "libpspp/bt.h"
-#include "libpspp/compiler.h"
-
-struct casereader;
-struct dataset;
-struct lexer;
-
-struct cell_container
-{
- /* A hash table containing the cells. The table is indexed by a hash
- based on the cell's categorical value. */
- struct hmap map;
-
- /* A binary tree containing the cells. This is
- used to sort the elements in order of their categorical
- values. */
- struct bt bt;
-};
-
-
-
-struct layer
-{
- size_t n_factor_vars;
- const struct variable **factor_vars;
-};
-
-
-struct statistic;
-
-typedef struct statistic *stat_create (struct pool *pool);
-typedef void stat_update (struct statistic *stat, double w, double x);
-typedef double stat_get (const struct statistic *);
-typedef void stat_destroy (struct statistic *);
-
-
-struct cell_spec
-{
- /* Printable title for output */
- const char *title;
-
- /* Keyword for syntax */
- const char *keyword;
-
- /* The result class for the datum. */
- const char *rc;
-
- stat_create *sc;
- stat_update *su;
- stat_get *sd;
- stat_destroy *sf;
-};
-
-struct summary
-{
- double n_total;
- double n_missing;
-};
-
-/* Intermediate data per table. */
-struct workspace
-{
- /* An array of n_layers integers which are used
- to permute access into the factor_vars of each layer. */
- int *control_idx;
-
- /* An array of n_layers cell_containers which hold the union
- of instances used respectively by each layer. */
- struct cell_container *instances;
-
- struct cell *root_cell;
-};
-
-/* The thing parsed after TABLES= */
-struct mtable
-{
- size_t n_dep_vars;
- const struct variable **dep_vars;
-
- struct layer **layers;
- int n_layers;
-
- int n_combinations;
-
- /* An array of n_combinations workspaces. */
- struct workspace *ws;
-
- /* An array of n_combinations * n_dep_vars summaries.
- These are displayed in the Case Processing
- Summary box. */
- struct summary *summ;
-};
-
-/* A structure created by the parser. Contains the definition of the
- what the procedure should calculate. */
-struct means
-{
- const struct dictionary *dict;
-
- /* The "tables" (ie, a definition of how the data should
- be broken down). */
- struct mtable *table;
- size_t n_tables;
-
- /* Missing value class for categorical variables. */
- enum mv_class ctrl_exclude;
-
- /* Missing value class for dependent variables */
- enum mv_class dep_exclude;
-
- /* The statistics to be calculated for each cell. */
- int *statistics;
- int n_statistics;
- size_t allocated_statistics;
-
- /* Pool on which cell functions may allocate data. */
- struct pool *pool;
-};
-
-
-
-#define n_MEANS_STATISTICS 17
-extern const struct cell_spec cell_spec[n_MEANS_STATISTICS];
-
-/* This enum must be consistent with the array cell_spec (in means-calc.c).
- A bitfield instead of enums would in my opinion be
- more elegent. However we want the order of the specified
- statistics to be retained in the output. */
-enum
- {
- MEANS_MEAN = 0,
- MEANS_N,
- MEANS_STDDEV
- };
-
-void run_means (struct means *, struct casereader *, const struct dataset *);
-bool means_parse (struct lexer *, struct means *);
-void means_set_default_statistics (struct means *);
-
-#endif
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