/*
PSPP - a program for statistical analysis.
Copyright (C) 2012, 2013, 2015 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
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 <math.h>
+#include "gl/xalloc.h"
#include <gsl/gsl_cdf.h>
#include "libpspp/assertion.h"
#include "math/order-stats.h"
#include "output/charts/plot-hist.h"
#include "output/charts/scatterplot.h"
+#include "output/charts/barchart.h"
#include "language/command.h"
#include "language/lexer/lexer.h"
#include "language/lexer/value-parser.h"
#include "language/lexer/variable-parser.h"
-
-#include "output/tab.h"
+#include "language/stats/freq.h"
+#include "language/stats/chart-category.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
ST_XYZ
};
+enum bar_type
+ {
+ CBT_SIMPLE,
+ CBT_GROUPED,
+ CBT_STACKED,
+ CBT_RANGE
+ };
+
+
/* Variable index for histogram case */
enum
{
bool missing_pw;
/* ------------ Graph ---------------- */
+ bool normal; /* For histograms, draw the normal curve */
+
enum chart_type chart_type;
enum scatter_type scatter_type;
- const struct variable *byvar;
+ enum bar_type bar_type;
+ const struct variable *by_var[2];
+ size_t n_by_vars;
+
+ struct subcase ordering; /* Ordering for aggregation */
+ int agr; /* Index into ag_func */
+
/* A caseproto that contains the plot data */
struct caseproto *gr_proto;
};
+
+
+static double
+calc_mom1 (double acc, double x, double w)
+{
+ return acc + x * w;
+}
+
+static double
+calc_mom0 (double acc, double x UNUSED, double w)
+{
+ return acc + w;
+}
+
+static double
+pre_low_extreme (void)
+{
+ return -DBL_MAX;
+}
+
+static double
+calc_max (double acc, double x, double w UNUSED)
+{
+ return (acc > x) ? acc : x;
+}
+
+static double
+pre_high_extreme (void)
+{
+ return DBL_MAX;
+}
+
+static double
+calc_min (double acc, double x, double w UNUSED)
+{
+ return (acc < x) ? acc : x;
+}
+
+static double
+post_normalise (double acc, double cc)
+{
+ return acc / cc;
+}
+
+static double
+post_percentage (double acc, double ccc)
+{
+ return acc / ccc * 100.0;
+}
+
+
+const struct ag_func ag_func[] =
+ {
+ {"COUNT", N_("Count"), 0, 0, NULL, calc_mom0, 0, 0},
+ {"PCT", N_("Percentage"), 0, 0, NULL, calc_mom0, 0, post_percentage},
+ {"CUFREQ", N_("Cumulative Count"), 0, 1, NULL, calc_mom0, 0, 0},
+ {"CUPCT", N_("Cumulative Percent"), 0, 1, NULL, calc_mom0, 0, post_percentage},
+
+ {"MEAN", N_("Mean"), 1, 0, NULL, calc_mom1, post_normalise, 0},
+ {"SUM", N_("Sum"), 1, 0, NULL, calc_mom1, 0, 0},
+ {"MAXIMUM", N_("Maximum"), 1, 0, pre_low_extreme, calc_max, 0, 0},
+ {"MINIMUM", N_("Minimum"), 1, 0, pre_high_extreme, calc_min, 0, 0},
+ };
+
+const int N_AG_FUNCS = sizeof (ag_func) / sizeof (ag_func[0]);
+
+static bool
+parse_function (struct lexer *lexer, struct graph *graph)
+{
+ int i;
+ for (i = 0 ; i < N_AG_FUNCS; ++i)
+ {
+ if (lex_match_id (lexer, ag_func[i].name))
+ {
+ graph->agr = i;
+ break;
+ }
+ }
+ if (i == N_AG_FUNCS)
+ {
+ goto error;
+ }
+
+ graph->n_dep_vars = ag_func[i].arity;
+ if (ag_func[i].arity > 0)
+ {
+ int v;
+ if (!lex_force_match (lexer, T_LPAREN))
+ goto error;
+
+ graph->dep_vars = xzalloc (sizeof (graph->dep_vars) * graph->n_dep_vars);
+ for (v = 0; v < ag_func[i].arity; ++v)
+ {
+ graph->dep_vars[v] = parse_variable (lexer, graph->dict);
+ if (! graph->dep_vars[v])
+ goto error;
+ }
+
+ if (!lex_force_match (lexer, T_RPAREN))
+ goto error;
+ }
+
+ if (!lex_force_match (lexer, T_BY))
+ goto error;
+
+ graph->by_var[0] = parse_variable (lexer, graph->dict);
+ if (!graph->by_var[0])
+ {
+ goto error;
+ }
+ subcase_add_var (&graph->ordering, graph->by_var[0], SC_ASCEND);
+ graph->n_by_vars++;
+
+ if (lex_match (lexer, T_BY))
+ {
+ graph->by_var[1] = parse_variable (lexer, graph->dict);
+ if (!graph->by_var[1])
+ {
+ goto error;
+ }
+ subcase_add_var (&graph->ordering, graph->by_var[1], SC_ASCEND);
+ graph->n_by_vars++;
+ }
+
+ return true;
+
+ error:
+ lex_error (lexer, NULL);
+ return false;
+}
+
+
static void
show_scatterplot (const struct graph *cmd, struct casereader *input)
{
ds_init_empty (&title);
- if (cmd->byvar)
+ if (cmd->n_by_vars > 0)
{
ds_put_format (&title, _("%s vs. %s by %s"),
var_to_string (cmd->dep_vars[1]),
var_to_string (cmd->dep_vars[0]),
- var_to_string (cmd->byvar));
+ var_to_string (cmd->by_var[0]));
}
else
{
var_to_string (cmd->dep_vars[1]),
var_to_string (cmd->dep_vars[0]));
}
-
scatterplot = scatterplot_create (input,
var_to_string(cmd->dep_vars[0]),
var_to_string(cmd->dep_vars[1]),
- cmd->byvar,
+ (cmd->n_by_vars > 0) ? cmd->by_var[0] : NULL,
&byvar_overflow,
ds_cstr (&title),
cmd->es[0].minimum, cmd->es[0].maximum,
if (byvar_overflow)
{
- msg (MW, _("Maximum number of scatterplot categories reached."
- "Your BY variable has too many distinct values."
- "The coloring of the plot will not be correct"));
+ msg (MW, _("Maximum number of scatterplot categories reached. "
+ "Your BY variable has too many distinct values. "
+ "The coloring of the plot will not be correct."));
}
}
struct histogram *histogram;
struct ccase *c;
+ if (cmd->es[0].cc <= 0)
+ {
+ casereader_destroy (input);
+ return;
+ }
+
{
/* Sturges Rule */
double bin_width = fabs (cmd->es[0].minimum - cmd->es[0].maximum)
histogram_create (bin_width, cmd->es[0].minimum, cmd->es[0].maximum);
}
+ if (NULL == histogram)
+ {
+ casereader_destroy (input);
+ return;
+ }
for (;(c = casereader_read (input)) != NULL; case_unref (c))
{
struct string label;
- ds_init_cstr (&label,
+ ds_init_cstr (&label,
var_to_string (cmd->dep_vars[0]));
moments_calculate (cmd->es[0].mom, &n, &mean, &var, NULL, NULL);
chart_item_submit
( histogram_chart_create (histogram->gsl_hist,
ds_cstr (&label), n, mean,
- sqrt (var), false));
+ sqrt (var), cmd->normal));
- statistic_destroy (&histogram->parent);
+ statistic_destroy (&histogram->parent);
ds_destroy (&label);
}
}
static void
cleanup_exploratory_stats (struct graph *cmd)
-{
+{
int v;
for (v = 0; v < cmd->n_dep_vars; ++v)
}
+static void
+run_barchart (struct graph *cmd, struct casereader *input)
+{
+ struct casegrouper *grouper;
+ struct casereader *group;
+ double ccc = 0.0;
+
+ if ( cmd->missing_pw == false)
+ input = casereader_create_filter_missing (input,
+ cmd->dep_vars,
+ cmd->n_dep_vars,
+ cmd->dep_excl,
+ NULL,
+ NULL);
+
+
+ input = sort_execute (input, &cmd->ordering);
+
+ struct freq **freqs = NULL;
+ int n_freqs = 0;
+
+ for (grouper = casegrouper_create_vars (input, cmd->by_var,
+ cmd->n_by_vars);
+ casegrouper_get_next_group (grouper, &group);
+ casereader_destroy (group))
+ {
+ int v;
+ struct ccase *c = casereader_peek (group, 0);
+
+ /* Deal with missing values in the categorical variables */
+ for (v = 0; v < cmd->n_by_vars; ++v)
+ {
+ if (var_is_value_missing (cmd->by_var[v], case_data (c, cmd->by_var[v]), cmd->fctr_excl) )
+ break;
+ }
+
+ if (v < cmd->n_by_vars)
+ {
+ case_unref (c);
+ continue;
+ }
+
+ freqs = xrealloc (freqs, sizeof (*freqs) * ++n_freqs);
+ freqs[n_freqs - 1] = xzalloc (sizeof (**freqs) +
+ sizeof (union value) * (cmd->n_by_vars - 1) );
+
+ if (ag_func[cmd->agr].cumulative && n_freqs >= 2)
+ freqs[n_freqs - 1]->count = freqs[n_freqs - 2]->count;
+ else
+ freqs[n_freqs - 1]->count = 0;
+ if (ag_func[cmd->agr].pre)
+ freqs[n_freqs - 1]->count = ag_func[cmd->agr].pre();
+
+
+ for (v = 0; v < cmd->n_by_vars; ++v)
+ {
+ value_clone (&freqs[n_freqs - 1]->values[v], case_data (c, cmd->by_var[v]),
+ var_get_width (cmd->by_var[v])
+ );
+ }
+ case_unref (c);
+
+ double cc = 0;
+ for (;(c = casereader_read (group)) != NULL; case_unref (c))
+ {
+ const double weight = dict_get_case_weight (cmd->dict,c,NULL);
+ const double x = (cmd->n_dep_vars > 0) ? case_data (c, cmd->dep_vars[0])->f : SYSMIS;
+
+ cc += weight;
+
+ freqs[n_freqs - 1]->count
+ = ag_func[cmd->agr].calc (freqs[n_freqs - 1]->count, x, weight);
+ }
+
+ if (ag_func[cmd->agr].post)
+ freqs[n_freqs - 1]->count
+ = ag_func[cmd->agr].post (freqs[n_freqs - 1]->count, cc);
+
+ ccc += cc;
+ }
+
+ casegrouper_destroy (grouper);
+
+ for (int i = 0; i < n_freqs; ++i)
+ {
+ if (ag_func[cmd->agr].ppost)
+ freqs[i]->count = ag_func[cmd->agr].ppost (freqs[i]->count, ccc);
+ }
+
+
+ {
+ struct string label;
+ ds_init_empty (&label);
+
+ if (cmd->n_dep_vars > 0)
+ ds_put_format (&label, _("%s of %s"),
+ ag_func[cmd->agr].description,
+ var_get_name (cmd->dep_vars[0]));
+ else
+ ds_put_cstr (&label,
+ ag_func[cmd->agr].description);
+
+ chart_item_submit (barchart_create (cmd->by_var, cmd->n_by_vars,
+ ds_cstr (&label), false,
+ freqs, n_freqs));
+
+ ds_destroy (&label);
+ }
+
+ for (int i = 0; i < n_freqs; ++i)
+ free (freqs[i]);
+
+ free (freqs);
+}
+
+
static void
run_graph (struct graph *cmd, struct casereader *input)
{
const double weight = dict_get_case_weight (cmd->dict,c,NULL);
if (cmd->chart_type == CT_HISTOGRAM)
case_data_rw_idx (outcase, HG_IDX_WT)->f = weight;
- if (cmd->chart_type == CT_SCATTERPLOT && cmd->byvar)
+ if (cmd->chart_type == CT_SCATTERPLOT && cmd->n_by_vars > 0)
value_copy (case_data_rw_idx (outcase, SP_IDX_BY),
- case_data (c, cmd->byvar),
- var_get_width (cmd->byvar));
+ case_data (c, cmd->by_var[0]),
+ var_get_width (cmd->by_var[0]));
for(int v=0;v<cmd->n_dep_vars;v++)
{
const struct variable *var = cmd->dep_vars[v];
struct graph graph;
graph.missing_pw = false;
-
+
graph.pool = pool_create ();
graph.dep_excl = MV_ANY;
graph.fctr_excl = MV_ANY;
-
+
graph.dict = dataset_dict (ds);
-
- /* ---------------- graph ------------------ */
graph.dep_vars = NULL;
graph.chart_type = CT_NONE;
graph.scatter_type = ST_BIVARIATE;
- graph.byvar = NULL;
+ graph.n_by_vars = 0;
graph.gr_proto = caseproto_create ();
+ subcase_init_empty (&graph.ordering);
+
while (lex_token (lexer) != T_ENDCMD)
{
lex_match (lexer, T_SLASH);
lex_error (lexer, _("Only one chart type is allowed."));
goto error;
}
+ graph.normal = false;
+ if (lex_match (lexer, T_LPAREN))
+ {
+ if (!lex_force_match_id (lexer, "NORMAL"))
+ goto error;
+
+ if (!lex_force_match (lexer, T_RPAREN))
+ goto error;
+
+ graph.normal = true;
+ }
if (!lex_force_match (lexer, T_EQUALS))
goto error;
graph.chart_type = CT_HISTOGRAM;
goto error;
}
}
+ else if (lex_match_id (lexer, "BAR"))
+ {
+ if (graph.chart_type != CT_NONE)
+ {
+ lex_error (lexer, _("Only one chart type is allowed."));
+ goto error;
+ }
+ graph.chart_type = CT_BAR;
+ graph.bar_type = CBT_SIMPLE;
+
+ if (lex_match (lexer, T_LPAREN))
+ {
+ if (lex_match_id (lexer, "SIMPLE"))
+ {
+ /* This is the default anyway */
+ }
+ else if (lex_match_id (lexer, "GROUPED"))
+ {
+ graph.bar_type = CBT_GROUPED;
+ goto error;
+ }
+ else if (lex_match_id (lexer, "STACKED"))
+ {
+ graph.bar_type = CBT_STACKED;
+ lex_error (lexer, _("%s is not yet implemented."), "STACKED");
+ goto error;
+ }
+ else if (lex_match_id (lexer, "RANGE"))
+ {
+ graph.bar_type = CBT_RANGE;
+ lex_error (lexer, _("%s is not yet implemented."), "RANGE");
+ goto error;
+ }
+ else
+ {
+ lex_error (lexer, NULL);
+ goto error;
+ }
+ if (!lex_force_match (lexer, T_RPAREN))
+ goto error;
+ }
+
+ if (!lex_force_match (lexer, T_EQUALS))
+ goto error;
+
+ if (! parse_function (lexer, &graph))
+ goto error;
+ }
else if (lex_match_id (lexer, "SCATTERPLOT"))
{
if (graph.chart_type != CT_NONE)
goto error;
}
graph.chart_type = CT_SCATTERPLOT;
- if (lex_match (lexer, T_LPAREN))
+ if (lex_match (lexer, T_LPAREN))
{
if (lex_match_id (lexer, "BIVARIATE"))
{
/* This is the default anyway */
}
- else if (lex_match_id (lexer, "OVERLAY"))
+ else if (lex_match_id (lexer, "OVERLAY"))
{
lex_error (lexer, _("%s is not yet implemented."),"OVERLAY");
goto error;
}
- else if (lex_match_id (lexer, "MATRIX"))
+ else if (lex_match_id (lexer, "MATRIX"))
{
lex_error (lexer, _("%s is not yet implemented."),"MATRIX");
goto error;
}
- else if (lex_match_id (lexer, "XYZ"))
+ else if (lex_match_id (lexer, "XYZ"))
{
lex_error(lexer, _("%s is not yet implemented."),"XYZ");
goto error;
&graph.dep_vars, &graph.n_dep_vars,
PV_NO_DUPLICATE | PV_NUMERIC))
goto error;
-
+
if (graph.scatter_type == ST_BIVARIATE && graph.n_dep_vars != 1)
{
lex_error(lexer, _("Only one variable is allowed."));
lex_error (lexer, _("Only one variable is allowed."));
goto error;
}
-
+
if (lex_match (lexer, T_BY))
{
const struct variable *v = NULL;
lex_error (lexer, _("Variable expected"));
goto error;
}
- graph.byvar = v;
+ graph.by_var[0] = v;
+ graph.n_by_vars = 1;
}
}
- else if (lex_match_id (lexer, "BAR"))
- {
- lex_error (lexer, _("%s is not yet implemented."),"BAR");
- goto error;
- }
else if (lex_match_id (lexer, "LINE"))
{
lex_error (lexer, _("%s is not yet implemented."),"LINE");
/* See scatterplot.h for the setup of the case prototype */
graph.gr_proto = caseproto_add_width (graph.gr_proto, 0); /* x value - SP_IDX_X*/
graph.gr_proto = caseproto_add_width (graph.gr_proto, 0); /* y value - SP_IDX_Y*/
- /* The byvar contains the plot categories for the different xy plot colors */
- if (graph.byvar) /* SP_IDX_BY */
- graph.gr_proto = caseproto_add_width (graph.gr_proto, var_get_width(graph.byvar));
+ /* The by_var contains the plot categories for the different xy plot colors */
+ if (graph.n_by_vars > 0) /* SP_IDX_BY */
+ graph.gr_proto = caseproto_add_width (graph.gr_proto, var_get_width(graph.by_var[0]));
break;
case CT_HISTOGRAM:
graph.gr_proto = caseproto_add_width (graph.gr_proto, 0); /* x value */
graph.gr_proto = caseproto_add_width (graph.gr_proto, 0); /* weight value */
break;
+ case CT_BAR:
+ break;
case CT_NONE:
- lex_error_expecting (lexer,"HISTOGRAM","SCATTERPLOT",NULL);
+ lex_error_expecting (lexer, "HISTOGRAM", "SCATTERPLOT", "BAR", NULL);
goto error;
default:
NOT_REACHED ();
struct casegrouper *grouper;
struct casereader *group;
bool ok;
-
+
grouper = casegrouper_create_splits (proc_open (ds), graph.dict);
while (casegrouper_get_next_group (grouper, &group))
- run_graph (&graph, group);
+ {
+ if (graph.chart_type == CT_BAR)
+ run_barchart (&graph, group);
+ else
+ run_graph (&graph, group);
+ }
ok = casegrouper_destroy (grouper);
ok = proc_commit (ds) && ok;
}
+ subcase_destroy (&graph.ordering);
free (graph.dep_vars);
pool_destroy (graph.pool);
caseproto_unref (graph.gr_proto);
return CMD_SUCCESS;
error:
+ subcase_destroy (&graph.ordering);
caseproto_unref (graph.gr_proto);
free (graph.dep_vars);
pool_destroy (graph.pool);
projects / pspp / blobdiff