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