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 #if 0 13 __FBSDID("$FreeBSD$"); 14 #endif 15 16 #include <stdio.h> 17 #include <math.h> 18 #include <err.h> 19 #include <string.h> 20 #include <stdlib.h> 21 #include <unistd.h> 22 #include <sys/ioctl.h> 23 #include <sys/queue.h> 24 #include <sys/ttycom.h> 25 26 #define NSTUDENT 100 27 #define NCONF 6 28 double const studentpct[] = { 80, 90, 95, 98, 99, 99.5 }; 29 double student [NSTUDENT + 1][NCONF] = { 30 /* inf */ { 1.282, 1.645, 1.960, 2.326, 2.576, 3.090 }, 31 /* 1. */ { 3.078, 6.314, 12.706, 31.821, 63.657, 318.313 }, 32 /* 2. */ { 1.886, 2.920, 4.303, 6.965, 9.925, 22.327 }, 33 /* 3. */ { 1.638, 2.353, 3.182, 4.541, 5.841, 10.215 }, 34 /* 4. */ { 1.533, 2.132, 2.776, 3.747, 4.604, 7.173 }, 35 /* 5. */ { 1.476, 2.015, 2.571, 3.365, 4.032, 5.893 }, 36 /* 6. */ { 1.440, 1.943, 2.447, 3.143, 3.707, 5.208 }, 37 /* 7. */ { 1.415, 1.895, 2.365, 2.998, 3.499, 4.782 }, 38 /* 8. */ { 1.397, 1.860, 2.306, 2.896, 3.355, 4.499 }, 39 /* 9. */ { 1.383, 1.833, 2.262, 2.821, 3.250, 4.296 }, 40 /* 10. */ { 1.372, 1.812, 2.228, 2.764, 3.169, 4.143 }, 41 /* 11. */ { 1.363, 1.796, 2.201, 2.718, 3.106, 4.024 }, 42 /* 12. */ { 1.356, 1.782, 2.179, 2.681, 3.055, 3.929 }, 43 /* 13. */ { 1.350, 1.771, 2.160, 2.650, 3.012, 3.852 }, 44 /* 14. */ { 1.345, 1.761, 2.145, 2.624, 2.977, 3.787 }, 45 /* 15. */ { 1.341, 1.753, 2.131, 2.602, 2.947, 3.733 }, 46 /* 16. */ { 1.337, 1.746, 2.120, 2.583, 2.921, 3.686 }, 47 /* 17. */ { 1.333, 1.740, 2.110, 2.567, 2.898, 3.646 }, 48 /* 18. */ { 1.330, 1.734, 2.101, 2.552, 2.878, 3.610 }, 49 /* 19. */ { 1.328, 1.729, 2.093, 2.539, 2.861, 3.579 }, 50 /* 20. */ { 1.325, 1.725, 2.086, 2.528, 2.845, 3.552 }, 51 /* 21. */ { 1.323, 1.721, 2.080, 2.518, 2.831, 3.527 }, 52 /* 22. */ { 1.321, 1.717, 2.074, 2.508, 2.819, 3.505 }, 53 /* 23. */ { 1.319, 1.714, 2.069, 2.500, 2.807, 3.485 }, 54 /* 24. */ { 1.318, 1.711, 2.064, 2.492, 2.797, 3.467 }, 55 /* 25. */ { 1.316, 1.708, 2.060, 2.485, 2.787, 3.450 }, 56 /* 26. */ { 1.315, 1.706, 2.056, 2.479, 2.779, 3.435 }, 57 /* 27. */ { 1.314, 1.703, 2.052, 2.473, 2.771, 3.421 }, 58 /* 28. */ { 1.313, 1.701, 2.048, 2.467, 2.763, 3.408 }, 59 /* 29. */ { 1.311, 1.699, 2.045, 2.462, 2.756, 3.396 }, 60 /* 30. */ { 1.310, 1.697, 2.042, 2.457, 2.750, 3.385 }, 61 /* 31. */ { 1.309, 1.696, 2.040, 2.453, 2.744, 3.375 }, 62 /* 32. */ { 1.309, 1.694, 2.037, 2.449, 2.738, 3.365 }, 63 /* 33. */ { 1.308, 1.692, 2.035, 2.445, 2.733, 3.356 }, 64 /* 34. */ { 1.307, 1.691, 2.032, 2.441, 2.728, 3.348 }, 65 /* 35. */ { 1.306, 1.690, 2.030, 2.438, 2.724, 3.340 }, 66 /* 36. */ { 1.306, 1.688, 2.028, 2.434, 2.719, 3.333 }, 67 /* 37. */ { 1.305, 1.687, 2.026, 2.431, 2.715, 3.326 }, 68 /* 38. */ { 1.304, 1.686, 2.024, 2.429, 2.712, 3.319 }, 69 /* 39. */ { 1.304, 1.685, 2.023, 2.426, 2.708, 3.313 }, 70 /* 40. */ { 1.303, 1.684, 2.021, 2.423, 2.704, 3.307 }, 71 /* 41. */ { 1.303, 1.683, 2.020, 2.421, 2.701, 3.301 }, 72 /* 42. */ { 1.302, 1.682, 2.018, 2.418, 2.698, 3.296 }, 73 /* 43. */ { 1.302, 1.681, 2.017, 2.416, 2.695, 3.291 }, 74 /* 44. */ { 1.301, 1.680, 2.015, 2.414, 2.692, 3.286 }, 75 /* 45. */ { 1.301, 1.679, 2.014, 2.412, 2.690, 3.281 }, 76 /* 46. */ { 1.300, 1.679, 2.013, 2.410, 2.687, 3.277 }, 77 /* 47. */ { 1.300, 1.678, 2.012, 2.408, 2.685, 3.273 }, 78 /* 48. */ { 1.299, 1.677, 2.011, 2.407, 2.682, 3.269 }, 79 /* 49. */ { 1.299, 1.677, 2.010, 2.405, 2.680, 3.265 }, 80 /* 50. */ { 1.299, 1.676, 2.009, 2.403, 2.678, 3.261 }, 81 /* 51. */ { 1.298, 1.675, 2.008, 2.402, 2.676, 3.258 }, 82 /* 52. */ { 1.298, 1.675, 2.007, 2.400, 2.674, 3.255 }, 83 /* 53. */ { 1.298, 1.674, 2.006, 2.399, 2.672, 3.251 }, 84 /* 54. */ { 1.297, 1.674, 2.005, 2.397, 2.670, 3.248 }, 85 /* 55. */ { 1.297, 1.673, 2.004, 2.396, 2.668, 3.245 }, 86 /* 56. */ { 1.297, 1.673, 2.003, 2.395, 2.667, 3.242 }, 87 /* 57. */ { 1.297, 1.672, 2.002, 2.394, 2.665, 3.239 }, 88 /* 58. */ { 1.296, 1.672, 2.002, 2.392, 2.663, 3.237 }, 89 /* 59. */ { 1.296, 1.671, 2.001, 2.391, 2.662, 3.234 }, 90 /* 60. */ { 1.296, 1.671, 2.000, 2.390, 2.660, 3.232 }, 91 /* 61. */ { 1.296, 1.670, 2.000, 2.389, 2.659, 3.229 }, 92 /* 62. */ { 1.295, 1.670, 1.999, 2.388, 2.657, 3.227 }, 93 /* 63. */ { 1.295, 1.669, 1.998, 2.387, 2.656, 3.225 }, 94 /* 64. */ { 1.295, 1.669, 1.998, 2.386, 2.655, 3.223 }, 95 /* 65. */ { 1.295, 1.669, 1.997, 2.385, 2.654, 3.220 }, 96 /* 66. */ { 1.295, 1.668, 1.997, 2.384, 2.652, 3.218 }, 97 /* 67. */ { 1.294, 1.668, 1.996, 2.383, 2.651, 3.216 }, 98 /* 68. */ { 1.294, 1.668, 1.995, 2.382, 2.650, 3.214 }, 99 /* 69. */ { 1.294, 1.667, 1.995, 2.382, 2.649, 3.213 }, 100 /* 70. */ { 1.294, 1.667, 1.994, 2.381, 2.648, 3.211 }, 101 /* 71. */ { 1.294, 1.667, 1.994, 2.380, 2.647, 3.209 }, 102 /* 72. */ { 1.293, 1.666, 1.993, 2.379, 2.646, 3.207 }, 103 /* 73. */ { 1.293, 1.666, 1.993, 2.379, 2.645, 3.206 }, 104 /* 74. */ { 1.293, 1.666, 1.993, 2.378, 2.644, 3.204 }, 105 /* 75. */ { 1.293, 1.665, 1.992, 2.377, 2.643, 3.202 }, 106 /* 76. */ { 1.293, 1.665, 1.992, 2.376, 2.642, 3.201 }, 107 /* 77. */ { 1.293, 1.665, 1.991, 2.376, 2.641, 3.199 }, 108 /* 78. */ { 1.292, 1.665, 1.991, 2.375, 2.640, 3.198 }, 109 /* 79. */ { 1.292, 1.664, 1.990, 2.374, 2.640, 3.197 }, 110 /* 80. */ { 1.292, 1.664, 1.990, 2.374, 2.639, 3.195 }, 111 /* 81. */ { 1.292, 1.664, 1.990, 2.373, 2.638, 3.194 }, 112 /* 82. */ { 1.292, 1.664, 1.989, 2.373, 2.637, 3.193 }, 113 /* 83. */ { 1.292, 1.663, 1.989, 2.372, 2.636, 3.191 }, 114 /* 84. */ { 1.292, 1.663, 1.989, 2.372, 2.636, 3.190 }, 115 /* 85. */ { 1.292, 1.663, 1.988, 2.371, 2.635, 3.189 }, 116 /* 86. */ { 1.291, 1.663, 1.988, 2.370, 2.634, 3.188 }, 117 /* 87. */ { 1.291, 1.663, 1.988, 2.370, 2.634, 3.187 }, 118 /* 88. */ { 1.291, 1.662, 1.987, 2.369, 2.633, 3.185 }, 119 /* 89. */ { 1.291, 1.662, 1.987, 2.369, 2.632, 3.184 }, 120 /* 90. */ { 1.291, 1.662, 1.987, 2.368, 2.632, 3.183 }, 121 /* 91. */ { 1.291, 1.662, 1.986, 2.368, 2.631, 3.182 }, 122 /* 92. */ { 1.291, 1.662, 1.986, 2.368, 2.630, 3.181 }, 123 /* 93. */ { 1.291, 1.661, 1.986, 2.367, 2.630, 3.180 }, 124 /* 94. */ { 1.291, 1.661, 1.986, 2.367, 2.629, 3.179 }, 125 /* 95. */ { 1.291, 1.661, 1.985, 2.366, 2.629, 3.178 }, 126 /* 96. */ { 1.290, 1.661, 1.985, 2.366, 2.628, 3.177 }, 127 /* 97. */ { 1.290, 1.661, 1.985, 2.365, 2.627, 3.176 }, 128 /* 98. */ { 1.290, 1.661, 1.984, 2.365, 2.627, 3.175 }, 129 /* 99. */ { 1.290, 1.660, 1.984, 2.365, 2.626, 3.175 }, 130 /* 100. */ { 1.290, 1.660, 1.984, 2.364, 2.626, 3.174 } 131 }; 132 133 #define MAX_DS 8 134 static char symbol[MAX_DS] = { ' ', 'x', '+', '*', '%', '#', '@', 'O' }; 135 136 struct dataset { 137 char *name; 138 double *points; 139 unsigned lpoints; 140 double sy, syy; 141 unsigned n; 142 }; 143 144 static struct dataset * 145 NewSet(void) 146 { 147 struct dataset *ds; 148 149 ds = calloc(1, sizeof *ds); 150 ds->lpoints = 100000; 151 ds->points = calloc(sizeof *ds->points, ds->lpoints); 152 return(ds); 153 } 154 155 static void 156 AddPoint(struct dataset *ds, double a) 157 { 158 double *dp; 159 160 if (ds->n >= ds->lpoints) { 161 dp = ds->points; 162 ds->lpoints *= 4; 163 ds->points = calloc(sizeof *ds->points, ds->lpoints); 164 memcpy(ds->points, dp, sizeof *dp * ds->n); 165 free(dp); 166 } 167 ds->points[ds->n++] = a; 168 ds->sy += a; 169 ds->syy += a * a; 170 } 171 172 static double 173 Min(struct dataset *ds) 174 { 175 176 return (ds->points[0]); 177 } 178 179 static double 180 Max(struct dataset *ds) 181 { 182 183 return (ds->points[ds->n -1]); 184 } 185 186 static double 187 Avg(struct dataset *ds) 188 { 189 190 return(ds->sy / ds->n); 191 } 192 193 static double 194 Median(struct dataset *ds) 195 { 196 197 return (ds->points[ds->n / 2]); 198 } 199 200 static double 201 Var(struct dataset *ds) 202 { 203 204 return (ds->syy - ds->sy * ds->sy / ds->n) / (ds->n - 1.0); 205 } 206 207 static double 208 Stddev(struct dataset *ds) 209 { 210 211 return sqrt(Var(ds)); 212 } 213 214 static void 215 VitalsHead(void) 216 { 217 218 printf(" N Min Max Median Avg Stddev\n"); 219 } 220 221 static void 222 Vitals(struct dataset *ds, int flag) 223 { 224 225 printf("%c %3d %17.12g %17.12g %17.12g %17.12g %17.12g", symbol[flag], 226 ds->n, Min(ds), Max(ds), Median(ds), Avg(ds), Stddev(ds)); 227 printf("\n"); 228 } 229 230 static void 231 Relative(struct dataset *ds, struct dataset *rs, int confidx) 232 { 233 double spool, s, d, e, t; 234 int i; 235 236 i = ds->n + rs->n - 2; 237 if (i > NSTUDENT) 238 t = student[0][confidx]; 239 else 240 t = student[i][confidx]; 241 spool = (ds->n - 1) * Var(ds) + (rs->n - 1) * Var(rs); 242 spool /= ds->n + rs->n - 2; 243 spool = sqrt(spool); 244 s = spool * sqrt(1.0 / ds->n + 1.0 / rs->n); 245 d = Avg(ds) - Avg(rs); 246 e = t * s; 247 248 if (fabs(d) > e) { 249 250 printf("Difference at %.1f%% confidence\n", studentpct[confidx]); 251 printf(" %g +/- %g\n", d, e); 252 printf(" %g%% +/- %g%%\n", d * 100 / Avg(rs), e * 100 / Avg(rs)); 253 printf(" (Student's t, pooled s = %g)\n", spool); 254 } else { 255 printf("No difference proven at %.1f%% confidence\n", 256 studentpct[confidx]); 257 } 258 } 259 260 struct plot { 261 double min; 262 double max; 263 double span; 264 int width; 265 266 double x0, dx; 267 int height; 268 char *data; 269 char **bar; 270 int separate_bars; 271 int num_datasets; 272 }; 273 274 static struct plot plot; 275 276 static void 277 SetupPlot(int width, int separate, int num_datasets) 278 { 279 struct plot *pl; 280 281 pl = &plot; 282 pl->width = width; 283 pl->height = 0; 284 pl->data = NULL; 285 pl->bar = NULL; 286 pl->separate_bars = separate; 287 pl->num_datasets = num_datasets; 288 pl->min = 999e99; 289 pl->max = -999e99; 290 } 291 292 static void 293 AdjPlot(double a) 294 { 295 struct plot *pl; 296 297 pl = &plot; 298 if (a < pl->min) 299 pl->min = a; 300 if (a > pl->max) 301 pl->max = a; 302 pl->span = pl->max - pl->min; 303 pl->dx = pl->span / (pl->width - 1.0); 304 pl->x0 = pl->min - .5 * pl->dx; 305 } 306 307 static void 308 DimPlot(struct dataset *ds) 309 { 310 AdjPlot(Min(ds)); 311 AdjPlot(Max(ds)); 312 AdjPlot(Avg(ds) - Stddev(ds)); 313 AdjPlot(Avg(ds) + Stddev(ds)); 314 } 315 316 static void 317 PlotSet(struct dataset *ds, int val) 318 { 319 struct plot *pl; 320 int i, j, m, x; 321 unsigned n; 322 int bar; 323 324 pl = &plot; 325 if (pl->span == 0) 326 return; 327 328 if (pl->separate_bars) 329 bar = val-1; 330 else 331 bar = 0; 332 333 if (pl->bar == NULL) { 334 pl->bar = malloc(sizeof(char *) * pl->num_datasets); 335 memset(pl->bar, 0, sizeof(char*) * pl->num_datasets); 336 } 337 if (pl->bar[bar] == NULL) { 338 pl->bar[bar] = malloc(pl->width); 339 memset(pl->bar[bar], 0, pl->width); 340 } 341 342 m = 1; 343 i = -1; 344 j = 0; 345 for (n = 0; n < ds->n; n++) { 346 x = (ds->points[n] - pl->x0) / pl->dx; 347 if (x == i) { 348 j++; 349 if (j > m) 350 m = j; 351 } else { 352 j = 1; 353 i = x; 354 } 355 } 356 m += 1; 357 if (m > pl->height) { 358 pl->data = realloc(pl->data, pl->width * m); 359 memset(pl->data + pl->height * pl->width, 0, 360 (m - pl->height) * pl->width); 361 } 362 pl->height = m; 363 i = -1; 364 for (n = 0; n < ds->n; n++) { 365 x = (ds->points[n] - pl->x0) / pl->dx; 366 if (x == i) { 367 j++; 368 } else { 369 j = 1; 370 i = x; 371 } 372 pl->data[j * pl->width + x] |= val; 373 } 374 if (!isnan(Stddev(ds))) { 375 x = ((Avg(ds) - Stddev(ds)) - pl->x0) / pl->dx; 376 m = ((Avg(ds) + Stddev(ds)) - pl->x0) / pl->dx; 377 pl->bar[bar][m] = '|'; 378 pl->bar[bar][x] = '|'; 379 for (i = x + 1; i < m; i++) 380 if (pl->bar[bar][i] == 0) 381 pl->bar[bar][i] = '_'; 382 } 383 x = (Median(ds) - pl->x0) / pl->dx; 384 pl->bar[bar][x] = 'M'; 385 x = (Avg(ds) - pl->x0) / pl->dx; 386 pl->bar[bar][x] = 'A'; 387 } 388 389 static void 390 DumpPlot(void) 391 { 392 struct plot *pl; 393 int i, j, k; 394 395 pl = &plot; 396 if (pl->span == 0) { 397 printf("[no plot, span is zero width]\n"); 398 return; 399 } 400 401 putchar('+'); 402 for (i = 0; i < pl->width; i++) 403 putchar('-'); 404 putchar('+'); 405 putchar('\n'); 406 for (i = 1; i < pl->height; i++) { 407 putchar('|'); 408 for (j = 0; j < pl->width; j++) { 409 k = pl->data[(pl->height - i) * pl->width + j]; 410 if (k >= 0 && k < MAX_DS) 411 putchar(symbol[k]); 412 else 413 printf("[%02x]", k); 414 } 415 putchar('|'); 416 putchar('\n'); 417 } 418 for (i = 0; i < pl->num_datasets; i++) { 419 if (pl->bar[i] == NULL) 420 continue; 421 putchar('|'); 422 for (j = 0; j < pl->width; j++) { 423 k = pl->bar[i][j]; 424 if (k == 0) 425 k = ' '; 426 putchar(k); 427 } 428 putchar('|'); 429 putchar('\n'); 430 } 431 putchar('+'); 432 for (i = 0; i < pl->width; i++) 433 putchar('-'); 434 putchar('+'); 435 putchar('\n'); 436 } 437 438 static int 439 dbl_cmp(const void *a, const void *b) 440 { 441 const double *aa = a; 442 const double *bb = b; 443 444 if (*aa < *bb) 445 return (-1); 446 else if (*aa > *bb) 447 return (1); 448 else 449 return (0); 450 } 451 452 static struct dataset * 453 ReadSet(const char *n, int column, const char *delim) 454 { 455 FILE *f; 456 char buf[BUFSIZ], *p, *t; 457 struct dataset *s; 458 double d; 459 int line; 460 int i; 461 462 if (n == NULL) { 463 f = stdin; 464 n = "<stdin>"; 465 } else if (!strcmp(n, "-")) { 466 f = stdin; 467 n = "<stdin>"; 468 } else { 469 f = fopen(n, "r"); 470 } 471 if (f == NULL) 472 err(1, "Cannot open %s", n); 473 s = NewSet(); 474 s->name = strdup(n); 475 line = 0; 476 while (fgets(buf, sizeof buf, f) != NULL) { 477 line++; 478 479 i = strlen(buf); 480 if (buf[i-1] == '\n') 481 buf[i-1] = '\0'; 482 for (i = 1, t = strtok(buf, delim); 483 t != NULL && *t != '#'; 484 i++, t = strtok(NULL, delim)) { 485 if (i == column) 486 break; 487 } 488 if (t == NULL || *t == '#') 489 continue; 490 491 d = strtod(t, &p); 492 if (p != NULL && *p != '\0') 493 err(2, "Invalid data on line %d in %s\n", line, n); 494 if (*buf != '\0') 495 AddPoint(s, d); 496 } 497 fclose(f); 498 if (s->n < 3) { 499 fprintf(stderr, 500 "Dataset %s must contain at least 3 data points\n", n); 501 exit (2); 502 } 503 qsort(s->points, s->n, sizeof *s->points, dbl_cmp); 504 return (s); 505 } 506 507 static void 508 usage(char const *whine) 509 { 510 int i; 511 512 fprintf(stderr, "%s\n", whine); 513 fprintf(stderr, 514 "Usage: ministat [-C column] [-c confidence] [-d delimiter(s)] [-ns] [-w width] [file [file ...]]\n"); 515 fprintf(stderr, "\tconfidence = {"); 516 for (i = 0; i < NCONF; i++) { 517 fprintf(stderr, "%s%g%%", 518 i ? ", " : "", 519 studentpct[i]); 520 } 521 fprintf(stderr, "}\n"); 522 fprintf(stderr, "\t-C : column number to extract (starts and defaults to 1)\n"); 523 fprintf(stderr, "\t-d : delimiter(s) string, default to \" \\t\"\n"); 524 fprintf(stderr, "\t-n : print summary statistics only, no graph/test\n"); 525 fprintf(stderr, "\t-s : print avg/median/stddev bars on separate lines\n"); 526 fprintf(stderr, "\t-w : width of graph/test output (default 74 or terminal width)\n"); 527 exit (2); 528 } 529 530 int 531 main(int argc, char **argv) 532 { 533 struct dataset *ds[7]; 534 int nds; 535 double a; 536 const char *delim = " \t"; 537 char *p; 538 int c, i, ci; 539 int column = 1; 540 int flag_s = 0; 541 int flag_n = 0; 542 int termwidth = 74; 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, "C:c:d:snw:")) != -1) 556 switch (c) { 557 case 'C': 558 column = strtol(optarg, &p, 10); 559 if (p != NULL && *p != '\0') 560 usage("Invalid column number."); 561 if (column <= 0) 562 usage("Column number should be positive."); 563 break; 564 case 'c': 565 a = strtod(optarg, &p); 566 if (p != NULL && *p != '\0') 567 usage("Not a floating point number"); 568 for (i = 0; i < NCONF; i++) 569 if (a == studentpct[i]) 570 ci = i; 571 if (ci == -1) 572 usage("No support for confidence level"); 573 break; 574 case 'd': 575 if (*optarg == '\0') 576 usage("Can't use empty delimiter string"); 577 delim = optarg; 578 break; 579 case 'n': 580 flag_n = 1; 581 break; 582 case 's': 583 flag_s = 1; 584 break; 585 case 'w': 586 termwidth = strtol(optarg, &p, 10); 587 if (p != NULL && *p != '\0') 588 usage("Invalid width, not a number."); 589 if (termwidth < 0) 590 usage("Unable to move beyond left margin."); 591 break; 592 default: 593 usage("Unknown option"); 594 break; 595 } 596 if (ci == -1) 597 ci = 2; 598 argc -= optind; 599 argv += optind; 600 601 if (argc == 0) { 602 ds[0] = ReadSet("-", column, delim); 603 nds = 1; 604 } else { 605 if (argc > (MAX_DS - 1)) 606 usage("Too many datasets."); 607 nds = argc; 608 for (i = 0; i < nds; i++) 609 ds[i] = ReadSet(argv[i], column, delim); 610 } 611 612 for (i = 0; i < nds; i++) 613 printf("%c %s\n", symbol[i+1], ds[i]->name); 614 615 if (!flag_n) { 616 SetupPlot(termwidth, flag_s, nds); 617 for (i = 0; i < nds; i++) 618 DimPlot(ds[i]); 619 for (i = 0; i < nds; i++) 620 PlotSet(ds[i], i + 1); 621 DumpPlot(); 622 } 623 VitalsHead(); 624 Vitals(ds[0], 1); 625 for (i = 1; i < nds; i++) { 626 Vitals(ds[i], i + 1); 627 if (!flag_n) 628 Relative(ds[i], ds[0], ci); 629 } 630 exit(0); 631 } 632