#include <libpspp/misc.h>
#include <libpspp/str.h>
#include <math/moments.h>
-#include <output/chart-provider.h>
#include <output/charts/box-whisker.h>
-#include <output/charts/cartesian.h>
+#include <output/charts/np-plot.h>
#include <output/manager.h>
#include <output/table.h>
};
-struct np_plot_chart
- {
- struct chart chart;
- char *label;
- struct casereader *data;
-
- /* Copied directly from struct np. */
- double y_min, y_max;
- double dns_min, dns_max;
-
- /* Calculated. */
- double slope, intercept;
- double y_first, y_last;
- double x_lower, x_upper;
- double slack;
- };
-
-static const struct chart_class np_plot_chart_class;
-static const struct chart_class dnp_plot_chart_class;
-
-/* Plot the normal and detrended normal plots for RESULT.
- Label the plots with LABEL */
-static void
-np_plot (struct np *np, const char *label)
-{
- struct np_plot_chart *np_plot, *dnp_plot;
-
- if ( np->n < 1.0 )
- {
- msg (MW, _("Not creating plot because data set is empty."));
- return ;
- }
-
- np_plot = xmalloc (sizeof *np_plot);
- chart_init (&np_plot->chart, &np_plot_chart_class);
- np_plot->label = xstrdup (label);
- np_plot->data = casewriter_make_reader (np->writer);
- np_plot->y_min = np->y_min;
- np_plot->y_max = np->y_max;
- np_plot->dns_min = np->dns_min;
- np_plot->dns_max = np->dns_max;
-
- /* Slope and intercept of the ideal normal probability line. */
- np_plot->slope = 1.0 / np->stddev;
- np_plot->intercept = -np->mean / np->stddev;
-
- np_plot->y_first = gsl_cdf_ugaussian_Pinv (1 / (np->n + 1));
- np_plot->y_last = gsl_cdf_ugaussian_Pinv (np->n / (np->n + 1));
-
- /* Need to make sure that both the scatter plot and the ideal fit into the
- plot */
- np_plot->x_lower = MIN (
- np->y_min, (np_plot->y_first - np_plot->intercept) / np_plot->slope);
- np_plot->x_upper = MAX (
- np->y_max, (np_plot->y_last - np_plot->intercept) / np_plot->slope) ;
- np_plot->slack = (np_plot->x_upper - np_plot->x_lower) * 0.05 ;
-
- dnp_plot = xmemdup (np_plot, sizeof *np_plot);
- chart_init (&dnp_plot->chart, &dnp_plot_chart_class);
- dnp_plot->label = xstrdup (dnp_plot->label);
- dnp_plot->data = casereader_clone (dnp_plot->data);
-
- chart_submit (&np_plot->chart);
- chart_submit (&dnp_plot->chart);
-}
-
-static void
-np_plot_chart_draw (const struct chart *chart, plPlotter *lp)
-{
- const struct np_plot_chart *plot = (struct np_plot_chart *) chart;
- struct chart_geometry geom;
- struct casereader *data;
- struct ccase *c;
-
- chart_geometry_init (lp, &geom);
- chart_write_title (lp, &geom, _("Normal Q-Q Plot of %s"), plot->label);
- chart_write_xlabel (lp, &geom, _("Observed Value"));
- chart_write_ylabel (lp, &geom, _("Expected Normal"));
- chart_write_xscale (lp, &geom,
- plot->x_lower - plot->slack,
- plot->x_upper + plot->slack, 5);
- chart_write_yscale (lp, &geom, plot->y_first, plot->y_last, 5);
-
- data = casereader_clone (plot->data);
- for (; (c = casereader_read (data)) != NULL; case_unref (c))
- chart_datum (lp, &geom, 0,
- case_data_idx (c, NP_IDX_Y)->f,
- case_data_idx (c, NP_IDX_NS)->f);
- casereader_destroy (data);
-
- chart_line (lp, &geom, plot->slope, plot->intercept,
- plot->y_first, plot->y_last, CHART_DIM_Y);
-
- chart_geometry_free (lp);
-}
-
-static void
-dnp_plot_chart_draw (const struct chart *chart, plPlotter *lp)
-{
- const struct np_plot_chart *plot = (struct np_plot_chart *) chart;
- struct chart_geometry geom;
- struct casereader *data;
- struct ccase *c;
-
- chart_geometry_init (lp, &geom);
- chart_write_title (lp, &geom, _("Detrended Normal Q-Q Plot of %s"),
- plot->label);
- chart_write_xlabel (lp, &geom, _("Observed Value"));
- chart_write_ylabel (lp, &geom, _("Dev from Normal"));
- chart_write_xscale (lp, &geom, plot->y_min, plot->y_max, 5);
- chart_write_yscale (lp, &geom, plot->dns_min, plot->dns_max, 5);
-
- data = casereader_clone (plot->data);
- for (; (c = casereader_read (data)) != NULL; case_unref (c))
- chart_datum (lp, &geom, 0, case_data_idx (c, NP_IDX_Y)->f,
- case_data_idx (c, NP_IDX_DNS)->f);
- casereader_destroy (data);
-
- chart_line (lp, &geom, 0, 0, plot->y_min, plot->y_max, CHART_DIM_X);
-
- chart_geometry_free (lp);
-}
-
-static void
-np_plot_chart_destroy (struct chart *chart)
-{
- struct np_plot_chart *plot = (struct np_plot_chart *) chart;
-
- casereader_destroy (plot->data);
- free (plot->label);
- free (plot);
-}
-
-static const struct chart_class np_plot_chart_class =
- {
- np_plot_chart_draw,
- np_plot_chart_destroy
- };
-
-static const struct chart_class dnp_plot_chart_class =
- {
- dnp_plot_chart_draw,
- np_plot_chart_destroy
- };
static void
ll != ll_null (&fctr->result_list);
ll = ll_next (ll))
{
- struct string str;
+ struct string label;
const struct factor_result *result =
ll_data (ll, struct factor_result, ll);
+ struct chart *npp, *dnpp;
+ struct casereader *reader;
+ struct np *np;
- ds_init_empty (&str);
- ds_put_format (&str, "%s ", var_get_name (dependent_var[v]));
+ ds_init_empty (&label);
+ ds_put_format (&label, "%s ", var_get_name (dependent_var[v]));
+ factor_to_string (fctr, result, &label);
- factor_to_string (fctr, result, &str);
+ np = (struct np *) result->metrics[v].np;
+ reader = casewriter_make_reader (np->writer);
+ npp = np_plot_create (np, reader, ds_cstr (&label));
+ dnpp = dnp_plot_create (np, reader, ds_cstr (&label));
- np_plot ((struct np*) result->metrics[v].np, ds_cstr(&str));
+ ds_destroy (&label);
- statistic_destroy ((struct statistic *)result->metrics[v].np);
+ if (npp == NULL || dnpp == NULL)
+ {
+ msg (MW, _("Not creating NP plot because data set is empty."));
+ chart_unref (npp);
+ chart_unref (dnpp);
+ }
+ else
+ {
+ chart_submit (npp);
+ chart_submit (dnpp);
+ }
- ds_destroy (&str);
+ statistic_destroy (&np->parent.parent);
}
}
}
projects / pspp-builds.git / blobdiff