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 if ((ds->n % 2) == 0) 196 return ((ds->points[ds->n / 2] + (ds->points[(ds->n / 2) - 1])) / 2); 197 else 198 return (ds->points[ds->n / 2]); 199 } 200 201 static double 202 Var(struct dataset *ds) 203 { 204 205 return (ds->syy - ds->sy * ds->sy / ds->n) / (ds->n - 1.0); 206 } 207 208 static double 209 Stddev(struct dataset *ds) 210 { 211 212 return sqrt(Var(ds)); 213 } 214 215 static void 216 VitalsHead(void) 217 { 218 219 printf(" N Min Max Median Avg Stddev\n"); 220 } 221 222 static void 223 Vitals(struct dataset *ds, int flag) 224 { 225 226 printf("%c %3d %13.8g %13.8g %13.8g %13.8g %13.8g", symbol[flag], 227 ds->n, Min(ds), Max(ds), Median(ds), Avg(ds), Stddev(ds)); 228 printf("\n"); 229 } 230 231 static void 232 Relative(struct dataset *ds, struct dataset *rs, int confidx) 233 { 234 double spool, s, d, e, t; 235 double re; 236 int i; 237 238 i = ds->n + rs->n - 2; 239 if (i > NSTUDENT) 240 t = student[0][confidx]; 241 else 242 t = student[i][confidx]; 243 spool = (ds->n - 1) * Var(ds) + (rs->n - 1) * Var(rs); 244 spool /= ds->n + rs->n - 2; 245 spool = sqrt(spool); 246 s = spool * sqrt(1.0 / ds->n + 1.0 / rs->n); 247 d = Avg(ds) - Avg(rs); 248 e = t * s; 249 250 re = (ds->n - 1) * Var(ds) + (rs->n - 1) * Var(rs) * 251 (Avg(ds) * Avg(ds)) / (Avg(rs) * Avg(rs)); 252 re *= (ds->n + rs->n) / (ds->n * rs->n * (ds->n + rs->n - 2.0)); 253 re = t * sqrt(re); 254 255 if (fabs(d) > e) { 256 257 printf("Difference at %.1f%% confidence\n", studentpct[confidx]); 258 printf(" %g +/- %g\n", d, e); 259 printf(" %g%% +/- %g%%\n", d * 100 / Avg(rs), re * 100 / Avg(rs)); 260 printf(" (Student's t, pooled s = %g)\n", spool); 261 } else { 262 printf("No difference proven at %.1f%% confidence\n", 263 studentpct[confidx]); 264 } 265 } 266 267 struct plot { 268 double min; 269 double max; 270 double span; 271 int width; 272 273 double x0, dx; 274 int height; 275 char *data; 276 char **bar; 277 int separate_bars; 278 int num_datasets; 279 }; 280 281 static struct plot plot; 282 283 static void 284 SetupPlot(int width, int separate, int num_datasets) 285 { 286 struct plot *pl; 287 288 pl = &plot; 289 pl->width = width; 290 pl->height = 0; 291 pl->data = NULL; 292 pl->bar = NULL; 293 pl->separate_bars = separate; 294 pl->num_datasets = num_datasets; 295 pl->min = 999e99; 296 pl->max = -999e99; 297 } 298 299 static void 300 AdjPlot(double a) 301 { 302 struct plot *pl; 303 304 pl = &plot; 305 if (a < pl->min) 306 pl->min = a; 307 if (a > pl->max) 308 pl->max = a; 309 pl->span = pl->max - pl->min; 310 pl->dx = pl->span / (pl->width - 1.0); 311 pl->x0 = pl->min - .5 * pl->dx; 312 } 313 314 static void 315 DimPlot(struct dataset *ds) 316 { 317 AdjPlot(Min(ds)); 318 AdjPlot(Max(ds)); 319 AdjPlot(Avg(ds) - Stddev(ds)); 320 AdjPlot(Avg(ds) + Stddev(ds)); 321 } 322 323 static void 324 PlotSet(struct dataset *ds, int val) 325 { 326 struct plot *pl; 327 int i, j, m, x; 328 unsigned n; 329 int bar; 330 331 pl = &plot; 332 if (pl->span == 0) 333 return; 334 335 if (pl->separate_bars) 336 bar = val-1; 337 else 338 bar = 0; 339 340 if (pl->bar == NULL) 341 pl->bar = calloc(sizeof(char *), pl->num_datasets); 342 if (pl->bar[bar] == NULL) { 343 pl->bar[bar] = malloc(pl->width); 344 memset(pl->bar[bar], 0, pl->width); 345 } 346 347 m = 1; 348 i = -1; 349 j = 0; 350 for (n = 0; n < ds->n; n++) { 351 x = (ds->points[n] - pl->x0) / pl->dx; 352 if (x == i) { 353 j++; 354 if (j > m) 355 m = j; 356 } else { 357 j = 1; 358 i = x; 359 } 360 } 361 m += 1; 362 if (m > pl->height) { 363 pl->data = realloc(pl->data, pl->width * m); 364 memset(pl->data + pl->height * pl->width, 0, 365 (m - pl->height) * pl->width); 366 } 367 pl->height = m; 368 i = -1; 369 for (n = 0; n < ds->n; n++) { 370 x = (ds->points[n] - pl->x0) / pl->dx; 371 if (x == i) { 372 j++; 373 } else { 374 j = 1; 375 i = x; 376 } 377 pl->data[j * pl->width + x] |= val; 378 } 379 if (!isnan(Stddev(ds))) { 380 x = ((Avg(ds) - Stddev(ds)) - pl->x0) / pl->dx; 381 m = ((Avg(ds) + Stddev(ds)) - pl->x0) / pl->dx; 382 pl->bar[bar][m] = '|'; 383 pl->bar[bar][x] = '|'; 384 for (i = x + 1; i < m; i++) 385 if (pl->bar[bar][i] == 0) 386 pl->bar[bar][i] = '_'; 387 } 388 x = (Median(ds) - pl->x0) / pl->dx; 389 pl->bar[bar][x] = 'M'; 390 x = (Avg(ds) - pl->x0) / pl->dx; 391 pl->bar[bar][x] = 'A'; 392 } 393 394 static void 395 DumpPlot(void) 396 { 397 struct plot *pl; 398 int i, j, k; 399 400 pl = &plot; 401 if (pl->span == 0) { 402 printf("[no plot, span is zero width]\n"); 403 return; 404 } 405 406 putchar('+'); 407 for (i = 0; i < pl->width; i++) 408 putchar('-'); 409 putchar('+'); 410 putchar('\n'); 411 for (i = 1; i < pl->height; i++) { 412 putchar('|'); 413 for (j = 0; j < pl->width; j++) { 414 k = pl->data[(pl->height - i) * pl->width + j]; 415 if (k >= 0 && k < MAX_DS) 416 putchar(symbol[k]); 417 else 418 printf("[%02x]", k); 419 } 420 putchar('|'); 421 putchar('\n'); 422 } 423 for (i = 0; i < pl->num_datasets; i++) { 424 if (pl->bar[i] == NULL) 425 continue; 426 putchar('|'); 427 for (j = 0; j < pl->width; j++) { 428 k = pl->bar[i][j]; 429 if (k == 0) 430 k = ' '; 431 putchar(k); 432 } 433 putchar('|'); 434 putchar('\n'); 435 } 436 putchar('+'); 437 for (i = 0; i < pl->width; i++) 438 putchar('-'); 439 putchar('+'); 440 putchar('\n'); 441 } 442 443 static int 444 dbl_cmp(const void *a, const void *b) 445 { 446 const double *aa = a; 447 const double *bb = b; 448 449 if (*aa < *bb) 450 return (-1); 451 else if (*aa > *bb) 452 return (1); 453 else 454 return (0); 455 } 456 457 static struct dataset * 458 ReadSet(const char *n, int column, const char *delim) 459 { 460 FILE *f; 461 char buf[BUFSIZ], *p, *t; 462 struct dataset *s; 463 double d; 464 int line; 465 int i; 466 467 if (n == NULL) { 468 f = stdin; 469 n = "<stdin>"; 470 } else if (!strcmp(n, "-")) { 471 f = stdin; 472 n = "<stdin>"; 473 } else { 474 f = fopen(n, "r"); 475 } 476 if (f == NULL) 477 err(1, "Cannot open %s", n); 478 s = NewSet(); 479 s->name = strdup(n); 480 line = 0; 481 while (fgets(buf, sizeof buf, f) != NULL) { 482 line++; 483 484 i = strlen(buf); 485 while (i > 0 && isspace(buf[i - 1])) 486 buf[--i] = '\0'; 487 for (i = 1, t = strtok(buf, delim); 488 t != NULL && *t != '#'; 489 i++, t = strtok(NULL, delim)) { 490 if (i == column) 491 break; 492 } 493 if (t == NULL || *t == '#') 494 continue; 495 496 d = strtod(t, &p); 497 if (p != NULL && *p != '\0') 498 errx(2, "Invalid data on line %d in %s", line, n); 499 if (*buf != '\0') 500 AddPoint(s, d); 501 } 502 fclose(f); 503 if (s->n < 3) { 504 fprintf(stderr, 505 "Dataset %s must contain at least 3 data points\n", n); 506 exit (2); 507 } 508 qsort(s->points, s->n, sizeof *s->points, dbl_cmp); 509 return (s); 510 } 511 512 static void 513 usage(char const *whine) 514 { 515 int i; 516 517 fprintf(stderr, "%s\n", whine); 518 fprintf(stderr, 519 "Usage: ministat [-C column] [-c confidence] [-d delimiter(s)] [-Ans] [-w width] [file [file ...]]\n"); 520 fprintf(stderr, "\tconfidence = {"); 521 for (i = 0; i < NCONF; i++) { 522 fprintf(stderr, "%s%g%%", 523 i ? ", " : "", 524 studentpct[i]); 525 } 526 fprintf(stderr, "}\n"); 527 fprintf(stderr, "\t-A : print statistics only. suppress the graph.\n"); 528 fprintf(stderr, "\t-C : column number to extract (starts and defaults to 1)\n"); 529 fprintf(stderr, "\t-d : delimiter(s) string, default to \" \\t\"\n"); 530 fprintf(stderr, "\t-n : print summary statistics only, no graph/test\n"); 531 fprintf(stderr, "\t-s : print avg/median/stddev bars on separate lines\n"); 532 fprintf(stderr, "\t-w : width of graph/test output (default 74 or terminal width)\n"); 533 exit (2); 534 } 535 536 int 537 main(int argc, char **argv) 538 { 539 struct dataset *ds[7]; 540 int nds; 541 double a; 542 const char *delim = " \t"; 543 char *p; 544 int c, i, ci; 545 int column = 1; 546 int flag_s = 0; 547 int flag_n = 0; 548 int termwidth = 74; 549 int suppress_plot = 0; 550 551 if (isatty(STDOUT_FILENO)) { 552 struct winsize wsz; 553 554 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 555 termwidth = atoi(p); 556 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &wsz) != -1 && 557 wsz.ws_col > 0) 558 termwidth = wsz.ws_col - 2; 559 } 560 561 ci = -1; 562 while ((c = getopt(argc, argv, "AC:c:d:snw:")) != -1) 563 switch (c) { 564 case 'A': 565 suppress_plot = 1; 566 break; 567 case 'C': 568 column = strtol(optarg, &p, 10); 569 if (p != NULL && *p != '\0') 570 usage("Invalid column number."); 571 if (column <= 0) 572 usage("Column number should be positive."); 573 break; 574 case 'c': 575 a = strtod(optarg, &p); 576 if (p != NULL && *p != '\0') 577 usage("Not a floating point number"); 578 for (i = 0; i < NCONF; i++) 579 if (a == studentpct[i]) 580 ci = i; 581 if (ci == -1) 582 usage("No support for confidence level"); 583 break; 584 case 'd': 585 if (*optarg == '\0') 586 usage("Can't use empty delimiter string"); 587 delim = optarg; 588 break; 589 case 'n': 590 flag_n = 1; 591 break; 592 case 's': 593 flag_s = 1; 594 break; 595 case 'w': 596 termwidth = strtol(optarg, &p, 10); 597 if (p != NULL && *p != '\0') 598 usage("Invalid width, not a number."); 599 if (termwidth < 0) 600 usage("Unable to move beyond left margin."); 601 break; 602 default: 603 usage("Unknown option"); 604 break; 605 } 606 if (ci == -1) 607 ci = 2; 608 argc -= optind; 609 argv += optind; 610 611 if (argc == 0) { 612 ds[0] = ReadSet("-", column, delim); 613 nds = 1; 614 } else { 615 if (argc > (MAX_DS - 1)) 616 usage("Too many datasets."); 617 nds = argc; 618 for (i = 0; i < nds; i++) 619 ds[i] = ReadSet(argv[i], column, delim); 620 } 621 622 for (i = 0; i < nds; i++) 623 printf("%c %s\n", symbol[i+1], ds[i]->name); 624 625 if (!flag_n && !suppress_plot) { 626 SetupPlot(termwidth, flag_s, nds); 627 for (i = 0; i < nds; i++) 628 DimPlot(ds[i]); 629 for (i = 0; i < nds; i++) 630 PlotSet(ds[i], i + 1); 631 DumpPlot(); 632 } 633 VitalsHead(); 634 Vitals(ds[0], 1); 635 for (i = 1; i < nds; i++) { 636 Vitals(ds[i], i + 1); 637 if (!flag_n) 638 Relative(ds[i], ds[0], ci); 639 } 640 exit(0); 641 } 642