[GRASS-SVN] r35971 - grass-addons/raster/r.univar2.zonal

svn_grass at osgeo.org svn_grass at osgeo.org
Fri Feb 20 02:22:37 EST 2009


Author: mmetz
Date: 2009-02-20 02:22:34 -0500 (Fri, 20 Feb 2009)
New Revision: 35971

Modified:
   grass-addons/raster/r.univar2.zonal/Makefile
   grass-addons/raster/r.univar2.zonal/globals.h
   grass-addons/raster/r.univar2.zonal/r.univar_main.c
   grass-addons/raster/r.univar2.zonal/stats.c
Log:
zonal stats, trying proper svn usage

Modified: grass-addons/raster/r.univar2.zonal/Makefile
===================================================================
--- grass-addons/raster/r.univar2.zonal/Makefile	2009-02-20 07:15:04 UTC (rev 35970)
+++ grass-addons/raster/r.univar2.zonal/Makefile	2009-02-20 07:22:34 UTC (rev 35971)
@@ -5,19 +5,19 @@
 DEPENDENCIES = $(G3DDEP) $(GISDEP)
 
 #needed for htmlmulti
-PROGRAMS = r.univar r3.univar
+PROGRAMS = r.univar.zonal
 
 include $(MODULE_TOPDIR)/include/Make/Multi.make
 
-R3UNIVAR = $(BIN)/r3.univar$(EXE)
-RUNIVAR = $(BIN)/r.univar$(EXE)
+#R3UNIVAR = $(BIN)/r3.univar.zonal$(EXE)
+RUNIVAR = $(BIN)/r.univar.zonal$(EXE)
 
-default: $(R3UNIVAR) $(RUNIVAR)
+default: $(RUNIVAR)
 	$(MAKE) htmlmulti
 
 $(RUNIVAR): $(OBJDIR)/r.univar_main.o $(OBJDIR)/sort.o $(OBJDIR)/stats.o
 	$(CC) $(LDFLAGS) -o $@ $^ $(FMODE_OBJ) $(LIBES) $(XDRLIB) $(MATHLIB)
 
-$(R3UNIVAR): $(OBJDIR)/r3.univar_main.o $(OBJDIR)/sort.o $(OBJDIR)/stats.o
-	$(CC) $(LDFLAGS) -o $@ $^ $(FMODE_OBJ) $(LIBES) $(XDRLIB) $(MATHLIB)
+#$(R3UNIVAR): $(OBJDIR)/r3.univar_main.o $(OBJDIR)/sort.o $(OBJDIR)/stats.o
+#	$(CC) $(LDFLAGS) -o $@ $^ $(FMODE_OBJ) $(LIBES) $(XDRLIB) $(MATHLIB)
 

Modified: grass-addons/raster/r.univar2.zonal/globals.h
===================================================================
--- grass-addons/raster/r.univar2.zonal/globals.h	2009-02-20 07:15:04 UTC (rev 35970)
+++ grass-addons/raster/r.univar2.zonal/globals.h	2009-02-20 07:22:34 UTC (rev 35971)
@@ -38,19 +38,28 @@
     FCELL *fcell_array;
     CELL *cell_array;
     int map_type;
+    void *nextp;
 } univar_stat;
 
+typedef struct
+{
+    CELL min, max, n_zones;
+    struct Categories cats;
+} zone_type;
+
 /* command line options are the same for raster and raster3d maps */
 typedef struct
 {
-    struct Option *inputfile, *percentile;
+    struct Option *inputfile, *zonefile, *percentile, *output_file;
     struct Flag *shell_style, *extended;
 } param_type;
 
 #ifdef MAIN
 param_type param;
+zone_type zone_info;
 #else
 extern param_type param;
+extern zone_type zone_info;
 #endif
 
 /* fn prototypes */

Modified: grass-addons/raster/r.univar2.zonal/r.univar_main.c
===================================================================
--- grass-addons/raster/r.univar2.zonal/r.univar_main.c	2009-02-20 07:15:04 UTC (rev 35970)
+++ grass-addons/raster/r.univar2.zonal/r.univar_main.c	2009-02-20 07:22:34 UTC (rev 35971)
@@ -27,8 +27,19 @@
 /* ************************************************************************* */
 void set_params()
 {
-    param.inputfile = G_define_standard_option(G_OPT_R_MAPS);
+    param.inputfile = G_define_standard_option(G_OPT_R_INPUT);
 
+    param.zonefile = G_define_standard_option(G_OPT_R_MAP);
+    param.zonefile->key = "zones";
+    param.zonefile->required = YES;
+    param.zonefile->description =
+	_("Raster map used for zoning, must be of type CELL");
+
+    param.output_file = G_define_standard_option(G_OPT_F_OUTPUT);
+    param.output_file->required = NO;
+    param.output_file->description =
+	_("Name for output file (if omitted or \"-\" output to stdout)");
+
     param.percentile = G_define_option();
     param.percentile->key = "percentile";
     param.percentile->type = TYPE_INTEGER;
@@ -53,7 +64,7 @@
 
 static int open_raster(const char *infile);
 static univar_stat *univar_stat_with_percentiles(int map_type, int size);
-static void process_raster(univar_stat * stats, int fd,
+static void process_raster(univar_stat * stats, int fd, int fdz,
 			   const struct Cell_head *region);
 
 /* *************************************************************** */
@@ -62,11 +73,15 @@
 int main(int argc, char *argv[])
 {
     unsigned int rows, cols;	/*  totals  */
-    int rasters;
+    /* int rasters; */
 
     struct Cell_head region;
     struct GModule *module;
     univar_stat *stats;
+    char *p, *z;
+    int fd, fdz, cell_type, min, max;
+    struct Range zone_range;
+    char *mapset, *name;
 
 
     G_gisinit(argv[0]);
@@ -82,50 +97,70 @@
     if (G_parser(argc, argv))
 	exit(EXIT_FAILURE);
 
+    name = param.output_file->answer;
+    if (name != NULL && strcmp(name, "-") != 0) {
+	if (NULL == freopen(name, "w", stdout)) {
+	    G_fatal_error(_("Unable to open file <%s> for writing"), name);
+	}
+    }
+
     G_get_window(&region);
     rows = region.rows;
     cols = region.cols;
 
-    /* count the rasters given */
-    {
-	const char **p;
+    zone_info.min = 0.0 / 0.0;	/*set to nan as default */
+    zone_info.max = 0.0 / 0.0;	/*set to nan as default */
+    zone_info.n_zones = 0;
 
-	for (p = (const char **)param.inputfile->answers, rasters = 0;
-	     *p; p++, rasters++) ;
-    }
+    /* open zoning raster */
+    z = param.zonefile->answer;
+    mapset = G_find_cell2(z, "");
 
-    /* process them all */
-    {
-	size_t cells = rasters * cols * rows;
-	int map_type = param.extended->answer ? -2 : -1;
-	char **p;
+    fdz = open_raster(z);
+    
+    cell_type = G_get_raster_map_type(fdz);
+    if (cell_type != CELL_TYPE)
+	G_fatal_error("Zoning raster must be of type CELL");
 
-	stats = ((map_type == -1)
-		 ? create_univar_stat_struct(-1, cells, 0)
-		 : 0);
+    if (G_read_range(z, mapset, &zone_range) == -1)
+	G_fatal_error("Can not read range for zoning raster");
+    if (G_get_range_min_max(&zone_range, &min, &max))
+	G_fatal_error("Can not read range for zoning raster");
+    if (G_read_raster_cats(z, mapset, &(zone_info.cats)))
+	G_warning("no category support for zoning raster");
 
-	for (p = param.inputfile->answers; *p; p++) {
-	    int fd = open_raster(*p);
+    zone_info.min = min;
+    zone_info.max = max;
+    zone_info.n_zones = max - min + 1;
 
-	    if (map_type != -1) {
-		/* NB: map_type must match when doing extended stats */
-		int this_type = G_get_raster_map_type(fd);
+    /* process input raster */
+    size_t cells = cols * rows;
+    int map_type = param.extended->answer ? -2 : -1;
 
-		assert(this_type > -1);
-		if (map_type < -1) {
-		    assert(stats == 0);
-		    map_type = this_type;
-		    stats = univar_stat_with_percentiles(map_type, cells);
-		}
-		else if (this_type != map_type) {
-		    G_fatal_error(_("Raster <%s> type mismatch"), *p);
-		}
-	    }
+    stats = ((map_type == -1)
+	     ? create_univar_stat_struct(-1, cells, 0)
+	     : 0);
 
-	    process_raster(stats, fd, &region);
+    p = param.inputfile->answer;
+    fd = open_raster(p);
+
+    if (map_type != -1) {
+	/* NB: map_type must match when doing extended stats */
+	int this_type = G_get_raster_map_type(fd);
+
+	assert(this_type > -1);
+	if (map_type < -1) {
+	    assert(stats == 0);
+	    map_type = this_type;
+	    stats = univar_stat_with_percentiles(map_type, cells);
 	}
+	else if (this_type != map_type) {
+	    G_fatal_error(_("Raster <%s> type mismatch"), p);
+	}
     }
 
+    process_raster(stats, fd, fdz, &region);
+
     if (!(param.shell_style->answer))
 	G_percent(rows, rows, 2);	/* finish it off */
 
@@ -159,14 +194,16 @@
 static univar_stat *univar_stat_with_percentiles(int map_type, int size)
 {
     univar_stat *stats;
-    int i;
+    int i, j;
 
     i = 0;
     while (param.percentile->answers[i])
 	i++;
     stats = create_univar_stat_struct(map_type, size, i);
-    for (i = 0; i < stats->n_perc; i++) {
-	sscanf(param.percentile->answers[i], "%i", &stats->perc[i]);
+    for (i = 0; i < zone_info.n_zones; i++) {
+	for (j = 0; j < stats[i].n_perc; j++) {
+	    sscanf(param.percentile->answers[j], "%i", &stats[i].perc[j]);
+	}
     }
 
     /* . */
@@ -174,45 +211,91 @@
 }
 
 static void
-process_raster(univar_stat * stats, int fd, const struct Cell_head *region)
+process_raster(univar_stat * stats, int fd, int fdz, const struct Cell_head *region)
 {
     /* use G_window_rows(), G_window_cols() here? */
     const int rows = region->rows;
     const int cols = region->cols;
-    int first = (stats->n < 1);
+    const int n_zones = zone_info.n_zones;
+    int *first, i;
 
     const RASTER_MAP_TYPE map_type = G_get_raster_map_type(fd);
-    void *nextp
-	= ((!param.extended->answer) ? 0
-	   : (map_type == DCELL_TYPE) ? (void *)stats->dcell_array
-	   : (map_type == FCELL_TYPE) ? (void *)stats->fcell_array
-	   : (void *)stats->cell_array);
     const size_t value_sz = G_raster_size(map_type);
     unsigned int row;
     void *raster_row;
+    CELL *zoneraster_row;
 
+    switch (map_type) {
+	case CELL_TYPE:
+	    for (i = 0; i < n_zones; i++) {
+		stats[i].nextp
+		= ((!param.extended->answer) ? 0 : (void *)stats[i].cell_array);
+	    }
+	    break;
+
+	case FCELL_TYPE:
+	    for (i = 0; i < n_zones; i++) {
+		stats[i].nextp
+		= ((!param.extended->answer) ? 0 : (void *)stats[i].fcell_array);
+	    }
+	    break;
+
+	case DCELL_TYPE:
+	    for (i = 0; i < n_zones; i++) {
+		stats[i].nextp
+		= ((!param.extended->answer) ? 0 : (void *)stats[i].dcell_array);
+	    }
+	    break;
+
+	default:
+	    G_fatal_error("input raster has unknown type");
+	    break;
+    }
+
+    first = (int *) G_malloc((n_zones - 1) * sizeof(int));
+    {
+	int i;
+	for (i = 0; i < n_zones; i++)
+	    first[i] = (stats[i].n < 1);
+    }
+
+
     raster_row = G_calloc(cols, value_sz);
+    zoneraster_row = G_allocate_c_raster_buf();
 
     for (row = 0; row < rows; row++) {
 	void *ptr;
+	CELL *zptr;
 	unsigned int col;
+	int zone;
 
 	if (G_get_raster_row(fd, raster_row, row, map_type) < 0)
 	    G_fatal_error(_("Reading row %d"), row);
+	if (G_get_c_raster_row(fdz, zoneraster_row, row) < 0)
+	    G_fatal_error(_("Reading row %d"), row);
 
 	ptr = raster_row;
+	zptr = zoneraster_row;
 
 	for (col = 0; col < cols; col++) {
 
 	    if (G_is_null_value(ptr, map_type)) {
 		ptr = G_incr_void_ptr(ptr, value_sz);
+		zptr++;
 		continue;
 	    }
+	    if (G_is_c_null_value(zptr)) {
+		ptr = G_incr_void_ptr(ptr, value_sz);
+		zptr++;
+		continue;
+	    }
 
-	    if (nextp) {
+	    zone = *zptr + zone_info.min;
+
+	    if (stats[zone].nextp) {
 		/* put the value into stats->XXXcell_array */
-		memcpy(nextp, ptr, value_sz);
-		nextp = G_incr_void_ptr(nextp, value_sz);
+		memcpy(stats[zone].nextp, ptr, value_sz);
+		stats[zone].nextp = G_incr_void_ptr(stats[zone].nextp, value_sz);
 	    }
 
 	    {
@@ -220,25 +303,26 @@
 			      : (map_type == FCELL_TYPE) ? *((FCELL *) ptr)
 			      : *((CELL *) ptr));
 
-		stats->sum += val;
-		stats->sumsq += val * val;
-		stats->sum_abs += fabs(val);
+		stats[zone].sum += val;
+		stats[zone].sumsq += val * val;
+		stats[zone].sum_abs += fabs(val);
 
-		if (first) {
-		    stats->max = val;
-		    stats->min = val;
-		    first = FALSE;
+		if (first[zone]) {
+		    stats[zone].max = val;
+		    stats[zone].min = val;
+		    first[zone] = FALSE;
 		}
 		else {
-		    if (val > stats->max)
-			stats->max = val;
-		    if (val < stats->min)
-			stats->min = val;
+		    if (val > stats[zone].max)
+			stats[zone].max = val;
+		    if (val < stats[zone].min)
+			stats[zone].min = val;
 		}
 	    }
 
 	    ptr = G_incr_void_ptr(ptr, value_sz);
-	    stats->n++;
+	    zptr++;
+	    stats[zone].n++;
 	}
 	if (!(param.shell_style->answer))
 	    G_percent(row, rows, 2);

Modified: grass-addons/raster/r.univar2.zonal/stats.c
===================================================================
--- grass-addons/raster/r.univar2.zonal/stats.c	2009-02-20 07:15:04 UTC (rev 35970)
+++ grass-addons/raster/r.univar2.zonal/stats.c	2009-02-20 07:22:34 UTC (rev 35971)
@@ -19,36 +19,40 @@
 univar_stat *create_univar_stat_struct(int map_type, int size, int n_perc)
 {
     univar_stat *stats;
+    int i;
+    int n_zones = zone_info.n_zones;
 
-    stats = (univar_stat *) G_calloc(1, sizeof(univar_stat));
+    stats = (univar_stat *) G_calloc(n_zones, sizeof(univar_stat));
 
-    stats->sum = 0.0;
-    stats->sumsq = 0.0;
-    stats->min = 0.0 / 0.0;	/*set to nan as default */
-    stats->max = 0.0 / 0.0;	/*set to nan as default */
-    stats->n_perc = n_perc;
-    if (n_perc > 0)
-	stats->perc = (int *)G_malloc(n_perc * sizeof(int));
-    else
-	stats->perc = NULL;
-    stats->sum_abs = 0.0;
-    stats->n = 0;
-    stats->size = size;
-    stats->dcell_array = NULL;
-    stats->fcell_array = NULL;
-    stats->cell_array = NULL;
-    stats->map_type = map_type;
+    for (i = 0; i < n_zones; i++) {
+	stats[i].sum = 0.0;
+	stats[i].sumsq = 0.0;
+	stats[i].min = 0.0 / 0.0;	/*set to nan as default */
+	stats[i].max = 0.0 / 0.0;	/*set to nan as default */
+	stats[i].n_perc = n_perc;
+	if (n_perc > 0)
+	    stats[i].perc = (int *)G_malloc(n_perc * sizeof(int));
+	else
+	    stats[i].perc = NULL;
+	stats[i].sum_abs = 0.0;
+	stats[i].n = 0;
+	stats[i].size = size;
+	stats[i].dcell_array = NULL;
+	stats[i].fcell_array = NULL;
+	stats[i].cell_array = NULL;
+	stats[i].map_type = map_type;
 
-    /* alloacte memory for extended computation */
-    if (param.extended->answer) {
-	if (map_type == DCELL_TYPE)
-	    stats->dcell_array =
-		(DCELL *) G_calloc(stats->size, sizeof(DCELL));
-	if (map_type == FCELL_TYPE)
-	    stats->fcell_array =
-		(FCELL *) G_calloc(stats->size, sizeof(FCELL));
-	if (map_type == CELL_TYPE)
-	    stats->cell_array = (CELL *) G_calloc(stats->size, sizeof(CELL));
+	/* allocate memory for extended computation */
+	if (param.extended->answer) {
+	    if (map_type == DCELL_TYPE)
+		stats[i].dcell_array =
+		    (DCELL *) G_calloc(stats[i].size, sizeof(DCELL));
+	    if (map_type == FCELL_TYPE)
+		stats[i].fcell_array =
+		    (FCELL *) G_calloc(stats[i].size, sizeof(FCELL));
+	    if (map_type == CELL_TYPE)
+		stats[i].cell_array = (CELL *) G_calloc(stats[i].size, sizeof(CELL));
+	}
     }
 
     return stats;
@@ -60,15 +64,19 @@
 /* *************************************************************** */
 void free_univar_stat_struct(univar_stat * stats)
 {
-    if (stats->perc)
-	G_free(stats->perc);
-    if (stats->dcell_array)
-	G_free(stats->dcell_array);
-    if (stats->fcell_array)
-	G_free(stats->fcell_array);
-    if (stats->cell_array)
-	G_free(stats->cell_array);
+    int i;
 
+    for (i = 0; i < zone_info.n_zones; i++){
+    if (stats[i].perc)
+	G_free(stats[i].perc);
+    if (stats[i].dcell_array)
+	G_free(stats[i].dcell_array);
+    if (stats[i].fcell_array)
+	G_free(stats[i].fcell_array);
+    if (stats[i].cell_array)
+	G_free(stats[i].cell_array);
+    }
+
     G_free(stats);
 
     return;
@@ -80,164 +88,175 @@
 /* *************************************************************** */
 int print_stats(univar_stat * stats)
 {
-    char sum_str[100];
-    double mean, variance, stdev, var_coef;
+    int z;
 
-    /*for extendet stats */
-    double quartile_25 = 0.0, quartile_75 = 0.0, *quartile_perc;
-    double median = 0.0;
-    unsigned int i;
-    int qpos_25, qpos_75, *qpos_perc;
+    for (z = 0; z < zone_info.n_zones; z++) {
+	char sum_str[100];
+	double mean, variance, stdev, var_coef;
 
+	/*for extendet stats */
+	double quartile_25 = 0.0, quartile_75 = 0.0, *quartile_perc;
+	double median = 0.0;
+	unsigned int i;
+	int qpos_25, qpos_75, *qpos_perc;
 
-    /* all these calculations get promoted to doubles, so any DIV0 becomes nan */
-    mean = stats->sum / stats->n;
-    variance = (stats->sumsq - stats->sum * stats->sum / stats->n) / stats->n;
-    if (variance < GRASS_EPSILON)
-	variance = 0.0;
-    stdev = sqrt(variance);
-    var_coef = (stdev / mean) * 100.;	/* perhaps stdev/fabs(mean) ? */
+	/* stats collected for this zone? */
+	if (stats[z].n == 0)
+	    continue;
 
-    sprintf(sum_str, "%.10f", stats->sum);
-    G_trim_decimal(sum_str);
 
-    if (!param.shell_style->answer) {
-	fprintf(stdout, "total null and non-null cells: %d\n", stats->size);
-	fprintf(stdout, "total null cells: %d\n\n", stats->size - stats->n);
-	fprintf(stdout, "Of the non-null cells:\n----------------------\n");
-    }
+	/* all these calculations get promoted to doubles, so any DIV0 becomes nan */
+	mean = stats[z].sum / stats[z].n;
+	variance = (stats[z].sumsq - stats[z].sum * stats[z].sum / stats[z].n) / stats[z].n;
+	if (variance < GRASS_EPSILON)
+	    variance = 0.0;
+	stdev = sqrt(variance);
+	var_coef = (stdev / mean) * 100.;	/* perhaps stdev/fabs(mean) ? */
 
-    if (param.shell_style->answer) {
-	fprintf(stdout, "n=%d\n", stats->n);
-	fprintf(stdout, "null_cells=%d\n", stats->size - stats->n);
-	fprintf(stdout, "min=%.15g\n", stats->min);
-	fprintf(stdout, "max=%.15g\n", stats->max);
-	fprintf(stdout, "range=%.15g\n", stats->max - stats->min);
-	fprintf(stdout, "mean=%.15g\n", mean);
-	fprintf(stdout, "mean_of_abs=%.15g\n", stats->sum_abs / stats->n);
-	fprintf(stdout, "stddev=%.15g\n", stdev);
-	fprintf(stdout, "variance=%.15g\n", variance);
-	fprintf(stdout, "coeff_var=%.15g\n", var_coef);
-	fprintf(stdout, "sum=%s\n", sum_str);
-    }
-    else {
-	fprintf(stdout, "n: %d\n", stats->n);
-	fprintf(stdout, "minimum: %g\n", stats->min);
-	fprintf(stdout, "maximum: %g\n", stats->max);
-	fprintf(stdout, "range: %g\n", stats->max - stats->min);
-	fprintf(stdout, "mean: %g\n", mean);
-	fprintf(stdout, "mean of absolute values: %g\n",
-		stats->sum_abs / stats->n);
-	fprintf(stdout, "standard deviation: %g\n", stdev);
-	fprintf(stdout, "variance: %g\n", variance);
-	fprintf(stdout, "variation coefficient: %g %%\n", var_coef);
-	fprintf(stdout, "sum: %s\n", sum_str);
-    }
+	sprintf(sum_str, "%.10f", stats[z].sum);
+	G_trim_decimal(sum_str);
 
+	fprintf(stdout, "\nzone %d %s\n\n", z - zone_info.min, G_get_c_raster_cat(&z + zone_info.min, &(zone_info.cats)));
 
-    /* TODO: mode, skewness, kurtosis */
-    if (param.extended->answer) {
-	qpos_perc = (int *)G_calloc(stats->n_perc, sizeof(int));
-	quartile_perc = (double *)G_calloc(stats->n_perc, sizeof(double));
-	for (i = 0; i < stats->n_perc; i++) {
-	    qpos_perc[i] = (int)(stats->n * 1e-2 * stats->perc[i] - 0.5);
+	if (!param.shell_style->answer) {
+	    fprintf(stdout, "total null and non-null cells: %d\n", stats[z].size);
+	    fprintf(stdout, "total null cells: %d\n\n", stats[z].size - stats[z].n);
+	    fprintf(stdout, "Of the non-null cells:\n----------------------\n");
 	}
-	qpos_25 = (int)(stats->n * 0.25 - 0.5);
-	qpos_75 = (int)(stats->n * 0.75 - 0.5);
 
-	switch (stats->map_type) {
-	case CELL_TYPE:
-	    heapsort_int(stats->cell_array, stats->n);
+	if (param.shell_style->answer) {
+	    fprintf(stdout, "n=%d\n", stats[z].n);
+	    fprintf(stdout, "null_cells=%d\n", stats[z].size - stats[z].n);
+	    fprintf(stdout, "min=%.15g\n", stats[z].min);
+	    fprintf(stdout, "max=%.15g\n", stats[z].max);
+	    fprintf(stdout, "range=%.15g\n", stats[z].max - stats[z].min);
+	    fprintf(stdout, "mean=%.15g\n", mean);
+	    fprintf(stdout, "mean_of_abs=%.15g\n", stats[z].sum_abs / stats[z].n);
+	    fprintf(stdout, "stddev=%.15g\n", stdev);
+	    fprintf(stdout, "variance=%.15g\n", variance);
+	    fprintf(stdout, "coeff_var=%.15g\n", var_coef);
+	    fprintf(stdout, "sum=%s\n", sum_str);
+	}
+	else {
+	    fprintf(stdout, "n: %d\n", stats[z].n);
+	    fprintf(stdout, "minimum: %g\n", stats[z].min);
+	    fprintf(stdout, "maximum: %g\n", stats[z].max);
+	    fprintf(stdout, "range: %g\n", stats[z].max - stats[z].min);
+	    fprintf(stdout, "mean: %g\n", mean);
+	    fprintf(stdout, "mean of absolute values: %g\n",
+		    stats[z].sum_abs / stats[z].n);
+	    fprintf(stdout, "standard deviation: %g\n", stdev);
+	    fprintf(stdout, "variance: %g\n", variance);
+	    fprintf(stdout, "variation coefficient: %g %%\n", var_coef);
+	    fprintf(stdout, "sum: %s\n", sum_str);
+	}
 
-	    quartile_25 = (double)stats->cell_array[qpos_25];
-	    if (stats->n % 2)	/* odd */
-		median = (double)stats->cell_array[(int)(stats->n / 2)];
-	    else		/* even */
-		median =
-		    (double)(stats->cell_array[stats->n / 2 - 1] +
-			     stats->cell_array[stats->n / 2]) / 2.0;
-	    quartile_75 = (double)stats->cell_array[qpos_75];
-	    for (i = 0; i < stats->n_perc; i++) {
-		quartile_perc[i] = (double)stats->cell_array[qpos_perc[i]];
+
+	/* TODO: mode, skewness, kurtosis */
+	if (param.extended->answer) {
+	    qpos_perc = (int *)G_calloc(stats[z].n_perc, sizeof(int));
+	    quartile_perc = (double *)G_calloc(stats[z].n_perc, sizeof(double));
+	    for (i = 0; i < stats[z].n_perc; i++) {
+		qpos_perc[i] = (int)(stats[z].n * 1e-2 * stats[z].perc[i] - 0.5);
 	    }
-	    break;
+	    qpos_25 = (int)(stats[z].n * 0.25 - 0.5);
+	    qpos_75 = (int)(stats[z].n * 0.75 - 0.5);
 
-	case FCELL_TYPE:
-	    heapsort_float(stats->fcell_array, stats->n);
+	    switch (stats[z].map_type) {
+	    case CELL_TYPE:
+		heapsort_int(stats[z].cell_array, stats[z].n);
 
-	    quartile_25 = (double)stats->fcell_array[qpos_25];
-	    if (stats->n % 2)	/* odd */
-		median = (double)stats->fcell_array[(int)(stats->n / 2)];
-	    else		/* even */
-		median =
-		    (double)(stats->fcell_array[stats->n / 2 - 1] +
-			     stats->fcell_array[stats->n / 2]) / 2.0;
-	    quartile_75 = (double)stats->fcell_array[qpos_75];
-	    for (i = 0; i < stats->n_perc; i++) {
-		quartile_perc[i] = (double)stats->fcell_array[qpos_perc[i]];
-	    }
-	    break;
+		quartile_25 = (double)stats[z].cell_array[qpos_25];
+		if (stats[z].n % 2)	/* odd */
+		    median = (double)stats[z].cell_array[(int)(stats[z].n / 2)];
+		else		/* even */
+		    median =
+			(double)(stats[z].cell_array[stats[z].n / 2 - 1] +
+				 stats[z].cell_array[stats[z].n / 2]) / 2.0;
+		quartile_75 = (double)stats[z].cell_array[qpos_75];
+		for (i = 0; i < stats[z].n_perc; i++) {
+		    quartile_perc[i] = (double)stats[z].cell_array[qpos_perc[i]];
+		}
+		break;
 
-	case DCELL_TYPE:
-	    heapsort_double(stats->dcell_array, stats->n);
+	    case FCELL_TYPE:
+		heapsort_float(stats[z].fcell_array, stats[z].n);
 
-	    quartile_25 = stats->dcell_array[qpos_25];
-	    if (stats->n % 2)	/* odd */
-		median = stats->dcell_array[(int)(stats->n / 2)];
-	    else		/* even */
-		median =
-		    (stats->dcell_array[stats->n / 2 - 1] +
-		     stats->dcell_array[stats->n / 2]) / 2.0;
-	    quartile_75 = stats->dcell_array[qpos_75];
-	    for (i = 0; i < stats->n_perc; i++) {
-		quartile_perc[i] = stats->dcell_array[qpos_perc[i]];
-	    }
-	    break;
+		quartile_25 = (double)stats[z].fcell_array[qpos_25];
+		if (stats[z].n % 2)	/* odd */
+		    median = (double)stats[z].fcell_array[(int)(stats[z].n / 2)];
+		else		/* even */
+		    median =
+			(double)(stats[z].fcell_array[stats[z].n / 2 - 1] +
+				 stats[z].fcell_array[stats[z].n / 2]) / 2.0;
+		quartile_75 = (double)stats[z].fcell_array[qpos_75];
+		for (i = 0; i < stats[z].n_perc; i++) {
+		    quartile_perc[i] = (double)stats[z].fcell_array[qpos_perc[i]];
+		}
+		break;
 
-	default:
-	    break;
-	}
+	    case DCELL_TYPE:
+		heapsort_double(stats[z].dcell_array, stats[z].n);
 
-	if (param.shell_style->answer) {
-	    fprintf(stdout, "first_quartile=%g\n", quartile_25);
-	    fprintf(stdout, "median=%g\n", median);
-	    fprintf(stdout, "third_quartile=%g\n", quartile_75);
-	    for (i = 0; i < stats->n_perc; i++) {
-		fprintf(stdout, "percentile_%d=%g\n", stats->perc[i],
-			quartile_perc[i]);
+		quartile_25 = stats[z].dcell_array[qpos_25];
+		if (stats[z].n % 2)	/* odd */
+		    median = stats[z].dcell_array[(int)(stats[z].n / 2)];
+		else		/* even */
+		    median =
+			(stats[z].dcell_array[stats[z].n / 2 - 1] +
+			 stats[z].dcell_array[stats[z].n / 2]) / 2.0;
+		quartile_75 = stats[z].dcell_array[qpos_75];
+		for (i = 0; i < stats[z].n_perc; i++) {
+		    quartile_perc[i] = stats[z].dcell_array[qpos_perc[i]];
+		}
+		break;
+
+	    default:
+		break;
 	    }
-	}
-	else {
-	    fprintf(stdout, "1st quartile: %g\n", quartile_25);
-	    if (stats->n % 2)
-		fprintf(stdout, "median (odd number of cells): %g\n", median);
-	    else
-		fprintf(stdout, "median (even number of cells): %g\n",
-			median);
-	    fprintf(stdout, "3rd quartile: %g\n", quartile_75);
 
-
-	    for (i = 0; i < stats->n_perc; i++) {
-		if (stats->perc[i] % 10 == 1 && stats->perc[i] != 11)
-		    fprintf(stdout, "%dst percentile: %g\n", stats->perc[i],
+	    if (param.shell_style->answer) {
+		fprintf(stdout, "first_quartile=%g\n", quartile_25);
+		fprintf(stdout, "median=%g\n", median);
+		fprintf(stdout, "third_quartile=%g\n", quartile_75);
+		for (i = 0; i < stats[z].n_perc; i++) {
+		    fprintf(stdout, "percentile_%d=%g\n", stats[z].perc[i],
 			    quartile_perc[i]);
-		else if (stats->perc[i] % 10 == 2 && stats->perc[i] != 12)
-		    fprintf(stdout, "%dnd percentile: %g\n", stats->perc[i],
-			    quartile_perc[i]);
-		else if (stats->perc[i] % 10 == 3 && stats->perc[i] != 13)
-		    fprintf(stdout, "%drd percentile: %g\n", stats->perc[i],
-			    quartile_perc[i]);
+		}
+	    }
+	    else {
+		fprintf(stdout, "1st quartile: %g\n", quartile_25);
+		if (stats[z].n % 2)
+		    fprintf(stdout, "median (odd number of cells): %g\n", median);
 		else
-		    fprintf(stdout, "%dth percentile: %g\n", stats->perc[i],
-			    quartile_perc[i]);
+		    fprintf(stdout, "median (even number of cells): %g\n",
+			    median);
+		fprintf(stdout, "3rd quartile: %g\n", quartile_75);
+
+
+		for (i = 0; i < stats[z].n_perc; i++) {
+		    if (stats[z].perc[i] % 10 == 1 && stats[z].perc[i] != 11)
+			fprintf(stdout, "%dst percentile: %g\n", stats[z].perc[i],
+				quartile_perc[i]);
+		    else if (stats[z].perc[i] % 10 == 2 && stats[z].perc[i] != 12)
+			fprintf(stdout, "%dnd percentile: %g\n", stats[z].perc[i],
+				quartile_perc[i]);
+		    else if (stats[z].perc[i] % 10 == 3 && stats[z].perc[i] != 13)
+			fprintf(stdout, "%drd percentile: %g\n", stats[z].perc[i],
+				quartile_perc[i]);
+		    else
+			fprintf(stdout, "%dth percentile: %g\n", stats[z].perc[i],
+				quartile_perc[i]);
+		}
 	    }
+	    G_free((void *)quartile_perc);
+	    G_free((void *)qpos_perc);
 	}
-	G_free((void *)quartile_perc);
-	G_free((void *)qpos_perc);
+
+	/* G_message() prints to stderr not stdout: disabled. this \n is printed above with zone */
+	/* if (!(param.shell_style->answer))
+	    G_message("\n"); */
     }
 
-    if (!(param.shell_style->answer))
-	G_message("\n");
-
     return 1;
 }



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