49 lines
1.6 KiB
Factor
49 lines
1.6 KiB
Factor
USING: assocs formatting grouping io kernel math math.parser
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math.statistics sequences sequences.extras sorting.extras ;
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: bin ( data limits -- seq )
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dup length 1 + [ 0 ] replicate -rot
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[ bisect-right over [ 1 + ] change-nth ] curry each ;
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: .bin ( {lo,hi} n i -- )
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swap "%3d members in " printf zero? "(" "[" ? write
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"%s, %s)\n" vprintf ;
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: .bins ( data limits -- )
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dup [ number>string ] map "-∞" prefix "∞" suffix 2 clump
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-rot bin [ .bin ] 2each-index ;
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"First example:" print
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{
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95 21 94 12 99 4 70 75 83 93 52 80 57 5 53 86 65 17 92 83 71
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61 54 58 47 16 8 9 32 84 7 87 46 19 30 37 96 6 98 40 79 97
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45 64 60 29 49 36 43 55
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}
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{ 23 37 43 53 67 83 } .bins nl
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"Second example:" print
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{
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445 814 519 697 700 130 255 889 481 122
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932 77 323 525 570 219 367 523 442 933
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416 589 930 373 202 253 775 47 731 685
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293 126 133 450 545 100 741 583 763 306
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655 267 248 477 549 238 62 678 98 534
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622 907 406 714 184 391 913 42 560 247
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346 860 56 138 546 38 985 948 58 213
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799 319 390 634 458 945 733 507 916 123
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345 110 720 917 313 845 426 9 457 628
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410 723 354 895 881 953 677 137 397 97
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854 740 83 216 421 94 517 479 292 963
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376 981 480 39 257 272 157 5 316 395
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787 942 456 242 759 898 576 67 298 425
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894 435 831 241 989 614 987 770 384 692
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698 765 331 487 251 600 879 342 982 527
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736 795 585 40 54 901 408 359 577 237
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605 847 353 968 832 205 838 427 876 959
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686 646 835 127 621 892 443 198 988 791
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466 23 707 467 33 670 921 180 991 396
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160 436 717 918 8 374 101 684 727 749
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}
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{ 14 18 249 312 389 392 513 591 634 720 } .bins
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