1/*
2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <phk@FreeBSD.ORG> wrote this file.  As long as you retain this notice you
5 * can do whatever you want with this stuff. If we meet some day, and you think
6 * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
7 * ----------------------------------------------------------------------------
8 *
9 */
10
11#include <sys/cdefs.h>
12__FBSDID("$FreeBSD$");
13
14#include <stdio.h>
15#include <math.h>
16#include <err.h>
17#include <string.h>
18#include <stdlib.h>
19#include <unistd.h>
20#include <sys/ioctl.h>
21#include <sys/queue.h>
22#include <sys/ttycom.h>
23
24#define NSTUDENT 100
25#define NCONF 6
26double const studentpct[] = { 80, 90, 95, 98, 99, 99.5 };
27double student [NSTUDENT + 1][NCONF] = {
28/* inf */	{	1.282,	1.645,	1.960,	2.326,	2.576,	3.090  },
29/* 1. */	{	3.078,	6.314,	12.706,	31.821,	63.657,	318.313  },
30/* 2. */	{	1.886,	2.920,	4.303,	6.965,	9.925,	22.327  },
31/* 3. */	{	1.638,	2.353,	3.182,	4.541,	5.841,	10.215  },
32/* 4. */	{	1.533,	2.132,	2.776,	3.747,	4.604,	7.173  },
33/* 5. */	{	1.476,	2.015,	2.571,	3.365,	4.032,	5.893  },
34/* 6. */	{	1.440,	1.943,	2.447,	3.143,	3.707,	5.208  },
35/* 7. */	{	1.415,	1.895,	2.365,	2.998,	3.499,	4.782  },
36/* 8. */	{	1.397,	1.860,	2.306,	2.896,	3.355,	4.499  },
37/* 9. */	{	1.383,	1.833,	2.262,	2.821,	3.250,	4.296  },
38/* 10. */	{	1.372,	1.812,	2.228,	2.764,	3.169,	4.143  },
39/* 11. */	{	1.363,	1.796,	2.201,	2.718,	3.106,	4.024  },
40/* 12. */	{	1.356,	1.782,	2.179,	2.681,	3.055,	3.929  },
41/* 13. */	{	1.350,	1.771,	2.160,	2.650,	3.012,	3.852  },
42/* 14. */	{	1.345,	1.761,	2.145,	2.624,	2.977,	3.787  },
43/* 15. */	{	1.341,	1.753,	2.131,	2.602,	2.947,	3.733  },
44/* 16. */	{	1.337,	1.746,	2.120,	2.583,	2.921,	3.686  },
45/* 17. */	{	1.333,	1.740,	2.110,	2.567,	2.898,	3.646  },
46/* 18. */	{	1.330,	1.734,	2.101,	2.552,	2.878,	3.610  },
47/* 19. */	{	1.328,	1.729,	2.093,	2.539,	2.861,	3.579  },
48/* 20. */	{	1.325,	1.725,	2.086,	2.528,	2.845,	3.552  },
49/* 21. */	{	1.323,	1.721,	2.080,	2.518,	2.831,	3.527  },
50/* 22. */	{	1.321,	1.717,	2.074,	2.508,	2.819,	3.505  },
51/* 23. */	{	1.319,	1.714,	2.069,	2.500,	2.807,	3.485  },
52/* 24. */	{	1.318,	1.711,	2.064,	2.492,	2.797,	3.467  },
53/* 25. */	{	1.316,	1.708,	2.060,	2.485,	2.787,	3.450  },
54/* 26. */	{	1.315,	1.706,	2.056,	2.479,	2.779,	3.435  },
55/* 27. */	{	1.314,	1.703,	2.052,	2.473,	2.771,	3.421  },
56/* 28. */	{	1.313,	1.701,	2.048,	2.467,	2.763,	3.408  },
57/* 29. */	{	1.311,	1.699,	2.045,	2.462,	2.756,	3.396  },
58/* 30. */	{	1.310,	1.697,	2.042,	2.457,	2.750,	3.385  },
59/* 31. */	{	1.309,	1.696,	2.040,	2.453,	2.744,	3.375  },
60/* 32. */	{	1.309,	1.694,	2.037,	2.449,	2.738,	3.365  },
61/* 33. */	{	1.308,	1.692,	2.035,	2.445,	2.733,	3.356  },
62/* 34. */	{	1.307,	1.691,	2.032,	2.441,	2.728,	3.348  },
63/* 35. */	{	1.306,	1.690,	2.030,	2.438,	2.724,	3.340  },
64/* 36. */	{	1.306,	1.688,	2.028,	2.434,	2.719,	3.333  },
65/* 37. */	{	1.305,	1.687,	2.026,	2.431,	2.715,	3.326  },
66/* 38. */	{	1.304,	1.686,	2.024,	2.429,	2.712,	3.319  },
67/* 39. */	{	1.304,	1.685,	2.023,	2.426,	2.708,	3.313  },
68/* 40. */	{	1.303,	1.684,	2.021,	2.423,	2.704,	3.307  },
69/* 41. */	{	1.303,	1.683,	2.020,	2.421,	2.701,	3.301  },
70/* 42. */	{	1.302,	1.682,	2.018,	2.418,	2.698,	3.296  },
71/* 43. */	{	1.302,	1.681,	2.017,	2.416,	2.695,	3.291  },
72/* 44. */	{	1.301,	1.680,	2.015,	2.414,	2.692,	3.286  },
73/* 45. */	{	1.301,	1.679,	2.014,	2.412,	2.690,	3.281  },
74/* 46. */	{	1.300,	1.679,	2.013,	2.410,	2.687,	3.277  },
75/* 47. */	{	1.300,	1.678,	2.012,	2.408,	2.685,	3.273  },
76/* 48. */	{	1.299,	1.677,	2.011,	2.407,	2.682,	3.269  },
77/* 49. */	{	1.299,	1.677,	2.010,	2.405,	2.680,	3.265  },
78/* 50. */	{	1.299,	1.676,	2.009,	2.403,	2.678,	3.261  },
79/* 51. */	{	1.298,	1.675,	2.008,	2.402,	2.676,	3.258  },
80/* 52. */	{	1.298,	1.675,	2.007,	2.400,	2.674,	3.255  },
81/* 53. */	{	1.298,	1.674,	2.006,	2.399,	2.672,	3.251  },
82/* 54. */	{	1.297,	1.674,	2.005,	2.397,	2.670,	3.248  },
83/* 55. */	{	1.297,	1.673,	2.004,	2.396,	2.668,	3.245  },
84/* 56. */	{	1.297,	1.673,	2.003,	2.395,	2.667,	3.242  },
85/* 57. */	{	1.297,	1.672,	2.002,	2.394,	2.665,	3.239  },
86/* 58. */	{	1.296,	1.672,	2.002,	2.392,	2.663,	3.237  },
87/* 59. */	{	1.296,	1.671,	2.001,	2.391,	2.662,	3.234  },
88/* 60. */	{	1.296,	1.671,	2.000,	2.390,	2.660,	3.232  },
89/* 61. */	{	1.296,	1.670,	2.000,	2.389,	2.659,	3.229  },
90/* 62. */	{	1.295,	1.670,	1.999,	2.388,	2.657,	3.227  },
91/* 63. */	{	1.295,	1.669,	1.998,	2.387,	2.656,	3.225  },
92/* 64. */	{	1.295,	1.669,	1.998,	2.386,	2.655,	3.223  },
93/* 65. */	{	1.295,	1.669,	1.997,	2.385,	2.654,	3.220  },
94/* 66. */	{	1.295,	1.668,	1.997,	2.384,	2.652,	3.218  },
95/* 67. */	{	1.294,	1.668,	1.996,	2.383,	2.651,	3.216  },
96/* 68. */	{	1.294,	1.668,	1.995,	2.382,	2.650,	3.214  },
97/* 69. */	{	1.294,	1.667,	1.995,	2.382,	2.649,	3.213  },
98/* 70. */	{	1.294,	1.667,	1.994,	2.381,	2.648,	3.211  },
99/* 71. */	{	1.294,	1.667,	1.994,	2.380,	2.647,	3.209  },
100/* 72. */	{	1.293,	1.666,	1.993,	2.379,	2.646,	3.207  },
101/* 73. */	{	1.293,	1.666,	1.993,	2.379,	2.645,	3.206  },
102/* 74. */	{	1.293,	1.666,	1.993,	2.378,	2.644,	3.204  },
103/* 75. */	{	1.293,	1.665,	1.992,	2.377,	2.643,	3.202  },
104/* 76. */	{	1.293,	1.665,	1.992,	2.376,	2.642,	3.201  },
105/* 77. */	{	1.293,	1.665,	1.991,	2.376,	2.641,	3.199  },
106/* 78. */	{	1.292,	1.665,	1.991,	2.375,	2.640,	3.198  },
107/* 79. */	{	1.292,	1.664,	1.990,	2.374,	2.640,	3.197  },
108/* 80. */	{	1.292,	1.664,	1.990,	2.374,	2.639,	3.195  },
109/* 81. */	{	1.292,	1.664,	1.990,	2.373,	2.638,	3.194  },
110/* 82. */	{	1.292,	1.664,	1.989,	2.373,	2.637,	3.193  },
111/* 83. */	{	1.292,	1.663,	1.989,	2.372,	2.636,	3.191  },
112/* 84. */	{	1.292,	1.663,	1.989,	2.372,	2.636,	3.190  },
113/* 85. */	{	1.292,	1.663,	1.988,	2.371,	2.635,	3.189  },
114/* 86. */	{	1.291,	1.663,	1.988,	2.370,	2.634,	3.188  },
115/* 87. */	{	1.291,	1.663,	1.988,	2.370,	2.634,	3.187  },
116/* 88. */	{	1.291,	1.662,	1.987,	2.369,	2.633,	3.185  },
117/* 89. */	{	1.291,	1.662,	1.987,	2.369,	2.632,	3.184  },
118/* 90. */	{	1.291,	1.662,	1.987,	2.368,	2.632,	3.183  },
119/* 91. */	{	1.291,	1.662,	1.986,	2.368,	2.631,	3.182  },
120/* 92. */	{	1.291,	1.662,	1.986,	2.368,	2.630,	3.181  },
121/* 93. */	{	1.291,	1.661,	1.986,	2.367,	2.630,	3.180  },
122/* 94. */	{	1.291,	1.661,	1.986,	2.367,	2.629,	3.179  },
123/* 95. */	{	1.291,	1.661,	1.985,	2.366,	2.629,	3.178  },
124/* 96. */	{	1.290,	1.661,	1.985,	2.366,	2.628,	3.177  },
125/* 97. */	{	1.290,	1.661,	1.985,	2.365,	2.627,	3.176  },
126/* 98. */	{	1.290,	1.661,	1.984,	2.365,	2.627,	3.175  },
127/* 99. */	{	1.290,	1.660,	1.984,	2.365,	2.626,	3.175  },
128/* 100. */	{	1.290,	1.660,	1.984,	2.364,	2.626,	3.174  }
129};
130
131#define	MAX_DS	8
132static char symbol[MAX_DS] = { ' ', 'x', '+', '*', '%', '#', '@', 'O' };
133
134struct dataset {
135	char *name;
136	double	*points;
137	unsigned lpoints;
138	double sy, syy;
139	unsigned n;
140};
141
142static struct dataset *
143NewSet(void)
144{
145	struct dataset *ds;
146
147	ds = calloc(1, sizeof *ds);
148	ds->lpoints = 100000;
149	ds->points = calloc(sizeof *ds->points, ds->lpoints);
150	return(ds);
151}
152
153static void
154AddPoint(struct dataset *ds, double a)
155{
156	double *dp;
157
158	if (ds->n >= ds->lpoints) {
159		dp = ds->points;
160		ds->lpoints *= 4;
161		ds->points = calloc(sizeof *ds->points, ds->lpoints);
162		memcpy(ds->points, dp, sizeof *dp * ds->n);
163		free(dp);
164	}
165	ds->points[ds->n++] = a;
166	ds->sy += a;
167	ds->syy += a * a;
168}
169
170static double
171Min(struct dataset *ds)
172{
173
174	return (ds->points[0]);
175}
176
177static double
178Max(struct dataset *ds)
179{
180
181	return (ds->points[ds->n -1]);
182}
183
184static double
185Avg(struct dataset *ds)
186{
187
188	return(ds->sy / ds->n);
189}
190
191static double
192Median(struct dataset *ds)
193{
194
195	return (ds->points[ds->n / 2]);
196}
197
198static double
199Var(struct dataset *ds)
200{
201
202	return (ds->syy - ds->sy * ds->sy / ds->n) / (ds->n - 1.0);
203}
204
205static double
206Stddev(struct dataset *ds)
207{
208
209	return sqrt(Var(ds));
210}
211
212static void
213VitalsHead(void)
214{
215
216	printf("    N           Min           Max        Median           Avg        Stddev\n");
217}
218
219static void
220Vitals(struct dataset *ds, int flag)
221{
222
223	printf("%c %3d %13.8g %13.8g %13.8g %13.8g %13.8g", symbol[flag],
224	    ds->n, Min(ds), Max(ds), Median(ds), Avg(ds), Stddev(ds));
225	printf("\n");
226}
227
228static void
229Relative(struct dataset *ds, struct dataset *rs, int confidx)
230{
231	double spool, s, d, e, t;
232	int i;
233
234	i = ds->n + rs->n - 2;
235	if (i > NSTUDENT)
236		t = student[0][confidx];
237	else
238		t = student[i][confidx];
239	spool = (ds->n - 1) * Var(ds) + (rs->n - 1) * Var(rs);
240	spool /= ds->n + rs->n - 2;
241	spool = sqrt(spool);
242	s = spool * sqrt(1.0 / ds->n + 1.0 / rs->n);
243	d = Avg(ds) - Avg(rs);
244	e = t * s;
245
246	if (fabs(d) > e) {
247
248		printf("Difference at %.1f%% confidence\n", studentpct[confidx]);
249		printf("	%g +/- %g\n", d, e);
250		printf("	%g%% +/- %g%%\n", d * 100 / Avg(rs), e * 100 / Avg(rs));
251		printf("	(Student's t, pooled s = %g)\n", spool);
252	} else {
253		printf("No difference proven at %.1f%% confidence\n",
254		    studentpct[confidx]);
255	}
256}
257
258struct plot {
259	double		min;
260	double		max;
261	double		span;
262	int		width;
263
264	double		x0, dx;
265	int		height;
266	char		*data;
267	char		**bar;
268	int		separate_bars;
269	int		num_datasets;
270};
271
272static struct plot plot;
273
274static void
275SetupPlot(int width, int separate, int num_datasets)
276{
277	struct plot *pl;
278
279	pl = &plot;
280	pl->width = width;
281	pl->height = 0;
282	pl->data = NULL;
283	pl->bar = NULL;
284	pl->separate_bars = separate;
285	pl->num_datasets = num_datasets;
286	pl->min = 999e99;
287	pl->max = -999e99;
288}
289
290static void
291AdjPlot(double a)
292{
293	struct plot *pl;
294
295	pl = &plot;
296	if (a < pl->min)
297		pl->min = a;
298	if (a > pl->max)
299		pl->max = a;
300	pl->span = pl->max - pl->min;
301	pl->dx = pl->span / (pl->width - 1.0);
302	pl->x0 = pl->min - .5 * pl->dx;
303}
304
305static void
306DimPlot(struct dataset *ds)
307{
308	AdjPlot(Min(ds));
309	AdjPlot(Max(ds));
310	AdjPlot(Avg(ds) - Stddev(ds));
311	AdjPlot(Avg(ds) + Stddev(ds));
312}
313
314static void
315PlotSet(struct dataset *ds, int val)
316{
317	struct plot *pl;
318	int i, j, m, x;
319	unsigned n;
320	int bar;
321
322	pl = &plot;
323	if (pl->span == 0)
324		return;
325
326	if (pl->separate_bars)
327		bar = val-1;
328	else
329		bar = 0;
330
331	if (pl->bar == NULL) {
332		pl->bar = malloc(sizeof(char *) * pl->num_datasets);
333		memset(pl->bar, 0, sizeof(char*) * pl->num_datasets);
334	}
335	if (pl->bar[bar] == NULL) {
336		pl->bar[bar] = malloc(pl->width);
337		memset(pl->bar[bar], 0, pl->width);
338	}
339
340	m = 1;
341	i = -1;
342	j = 0;
343	for (n = 0; n < ds->n; n++) {
344		x = (ds->points[n] - pl->x0) / pl->dx;
345		if (x == i) {
346			j++;
347			if (j > m)
348				m = j;
349		} else {
350			j = 1;
351			i = x;
352		}
353	}
354	m += 1;
355	if (m > pl->height) {
356		pl->data = realloc(pl->data, pl->width * m);
357		memset(pl->data + pl->height * pl->width, 0,
358		    (m - pl->height) * pl->width);
359	}
360	pl->height = m;
361	i = -1;
362	for (n = 0; n < ds->n; n++) {
363		x = (ds->points[n] - pl->x0) / pl->dx;
364		if (x == i) {
365			j++;
366		} else {
367			j = 1;
368			i = x;
369		}
370		pl->data[j * pl->width + x] |= val;
371	}
372	if (!isnan(Stddev(ds))) {
373		x = ((Avg(ds) - Stddev(ds)) - pl->x0) / pl->dx;
374		m = ((Avg(ds) + Stddev(ds)) - pl->x0) / pl->dx;
375		pl->bar[bar][m] = '|';
376		pl->bar[bar][x] = '|';
377		for (i = x + 1; i < m; i++)
378			if (pl->bar[bar][i] == 0)
379				pl->bar[bar][i] = '_';
380	}
381	x = (Median(ds) - pl->x0) / pl->dx;
382	pl->bar[bar][x] = 'M';
383	x = (Avg(ds) - pl->x0) / pl->dx;
384	pl->bar[bar][x] = 'A';
385}
386
387static void
388DumpPlot(void)
389{
390	struct plot *pl;
391	int i, j, k;
392
393	pl = &plot;
394	if (pl->span == 0) {
395		printf("[no plot, span is zero width]\n");
396		return;
397	}
398
399	putchar('+');
400	for (i = 0; i < pl->width; i++)
401		putchar('-');
402	putchar('+');
403	putchar('\n');
404	for (i = 1; i < pl->height; i++) {
405		putchar('|');
406		for (j = 0; j < pl->width; j++) {
407			k = pl->data[(pl->height - i) * pl->width + j];
408			if (k >= 0 && k < MAX_DS)
409				putchar(symbol[k]);
410			else
411				printf("[%02x]", k);
412		}
413		putchar('|');
414		putchar('\n');
415	}
416	for (i = 0; i < pl->num_datasets; i++) {
417		if (pl->bar[i] == NULL)
418			continue;
419		putchar('|');
420		for (j = 0; j < pl->width; j++) {
421			k = pl->bar[i][j];
422			if (k == 0)
423				k = ' ';
424			putchar(k);
425		}
426		putchar('|');
427		putchar('\n');
428	}
429	putchar('+');
430	for (i = 0; i < pl->width; i++)
431		putchar('-');
432	putchar('+');
433	putchar('\n');
434}
435
436static int
437dbl_cmp(const void *a, const void *b)
438{
439	const double *aa = a;
440	const double *bb = b;
441
442	if (*aa < *bb)
443		return (-1);
444	else if (*aa > *bb)
445		return (1);
446	else
447		return (0);
448}
449
450static struct dataset *
451ReadSet(const char *n, int column, const char *delim)
452{
453	FILE *f;
454	char buf[BUFSIZ], *p, *t;
455	struct dataset *s;
456	double d;
457	int line;
458	int i;
459
460	if (n == NULL) {
461		f = stdin;
462		n = "<stdin>";
463	} else if (!strcmp(n, "-")) {
464		f = stdin;
465		n = "<stdin>";
466	} else {
467		f = fopen(n, "r");
468	}
469	if (f == NULL)
470		err(1, "Cannot open %s", n);
471	s = NewSet();
472	s->name = strdup(n);
473	line = 0;
474	while (fgets(buf, sizeof buf, f) != NULL) {
475		line++;
476
477		i = strlen(buf);
478		if (buf[i-1] == '\n')
479			buf[i-1] = '\0';
480		for (i = 1, t = strtok(buf, delim);
481		     t != NULL && *t != '#';
482		     i++, t = strtok(NULL, delim)) {
483			if (i == column)
484				break;
485		}
486		if (t == NULL || *t == '#')
487			continue;
488
489		d = strtod(t, &p);
490		if (p != NULL && *p != '\0')
491			err(2, "Invalid data on line %d in %s\n", line, n);
492		if (*buf != '\0')
493			AddPoint(s, d);
494	}
495	fclose(f);
496	if (s->n < 3) {
497		fprintf(stderr,
498		    "Dataset %s must contain at least 3 data points\n", n);
499		exit (2);
500	}
501	qsort(s->points, s->n, sizeof *s->points, dbl_cmp);
502	return (s);
503}
504
505static void
506usage(char const *whine)
507{
508	int i;
509
510	fprintf(stderr, "%s\n", whine);
511	fprintf(stderr,
512	    "Usage: ministat [-C column] [-c confidence] [-d delimiter(s)] [-Ans] [-w width] [file [file ...]]\n");
513	fprintf(stderr, "\tconfidence = {");
514	for (i = 0; i < NCONF; i++) {
515		fprintf(stderr, "%s%g%%",
516		    i ? ", " : "",
517		    studentpct[i]);
518	}
519	fprintf(stderr, "}\n");
520	fprintf(stderr, "\t-A : print statistics only. suppress the graph.\n");
521	fprintf(stderr, "\t-C : column number to extract (starts and defaults to 1)\n");
522	fprintf(stderr, "\t-d : delimiter(s) string, default to \" \\t\"\n");
523	fprintf(stderr, "\t-n : print summary statistics only, no graph/test\n");
524	fprintf(stderr, "\t-s : print avg/median/stddev bars on separate lines\n");
525	fprintf(stderr, "\t-w : width of graph/test output (default 74 or terminal width)\n");
526	exit (2);
527}
528
529int
530main(int argc, char **argv)
531{
532	struct dataset *ds[7];
533	int nds;
534	double a;
535	const char *delim = " \t";
536	char *p;
537	int c, i, ci;
538	int column = 1;
539	int flag_s = 0;
540	int flag_n = 0;
541	int termwidth = 74;
542	int suppress_plot = 0;
543
544	if (isatty(STDOUT_FILENO)) {
545		struct winsize wsz;
546
547		if ((p = getenv("COLUMNS")) != NULL && *p != '\0')
548			termwidth = atoi(p);
549		else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &wsz) != -1 &&
550			 wsz.ws_col > 0)
551			termwidth = wsz.ws_col - 2;
552	}
553
554	ci = -1;
555	while ((c = getopt(argc, argv, "AC:c:d:snw:")) != -1)
556		switch (c) {
557		case 'A':
558			suppress_plot = 1;
559			break;
560		case 'C':
561			column = strtol(optarg, &p, 10);
562			if (p != NULL && *p != '\0')
563				usage("Invalid column number.");
564			if (column <= 0)
565				usage("Column number should be positive.");
566			break;
567		case 'c':
568			a = strtod(optarg, &p);
569			if (p != NULL && *p != '\0')
570				usage("Not a floating point number");
571			for (i = 0; i < NCONF; i++)
572				if (a == studentpct[i])
573					ci = i;
574			if (ci == -1)
575				usage("No support for confidence level");
576			break;
577		case 'd':
578			if (*optarg == '\0')
579				usage("Can't use empty delimiter string");
580			delim = optarg;
581			break;
582		case 'n':
583			flag_n = 1;
584			break;
585		case 's':
586			flag_s = 1;
587			break;
588		case 'w':
589			termwidth = strtol(optarg, &p, 10);
590			if (p != NULL && *p != '\0')
591				usage("Invalid width, not a number.");
592			if (termwidth < 0)
593				usage("Unable to move beyond left margin.");
594			break;
595		default:
596			usage("Unknown option");
597			break;
598		}
599	if (ci == -1)
600		ci = 2;
601	argc -= optind;
602	argv += optind;
603
604	if (argc == 0) {
605		ds[0] = ReadSet("-", column, delim);
606		nds = 1;
607	} else {
608		if (argc > (MAX_DS - 1))
609			usage("Too many datasets.");
610		nds = argc;
611		for (i = 0; i < nds; i++)
612			ds[i] = ReadSet(argv[i], column, delim);
613	}
614
615	for (i = 0; i < nds; i++)
616		printf("%c %s\n", symbol[i+1], ds[i]->name);
617
618	if (!flag_n && !suppress_plot) {
619		SetupPlot(termwidth, flag_s, nds);
620		for (i = 0; i < nds; i++)
621			DimPlot(ds[i]);
622		for (i = 0; i < nds; i++)
623			PlotSet(ds[i], i + 1);
624		DumpPlot();
625	}
626	VitalsHead();
627	Vitals(ds[0], 1);
628	for (i = 1; i < nds; i++) {
629		Vitals(ds[i], i + 1);
630		if (!flag_n)
631			Relative(ds[i], ds[0], ci);
632	}
633	exit(0);
634}
635