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Ingy döt Net 2023-07-01 11:58:00 -04:00
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13
Task/Bin-given-limits/J/bin-given-limits-1.j Normal file
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Idotr=: |.@[ (#@[ - I.) ] NB. reverses order of limits to obtain intervals closed on left, open on right (>= y <)
binnedData=: adverb define
bidx=. i.@>:@# x NB. indicies of bins
x (Idotr (u@}./.)&(bidx&,) ]) y NB. apply u to data in each bin after dropping first value
)
require 'format/printf'
printBinCounts=: dyad define
counts =. y
'%2d in [ -∞, %3d)' printf ({. counts) , {. x
'%2d in [%3d, %3d)' printf (}.}: counts) ,. 2 ]\ x
'%2d in [%3d, ∞]' printf ({: counts) , {: x
)

37
Task/Bin-given-limits/J/bin-given-limits-2.j Normal file
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limits1=: 23 37 43 53 67 83
data1=: , 0&".;._2 noun define
95 21 94 12 99 4 70 75 83 93 52 80 57 5 53 86 65 17 92 83 71 61 54 58 47
16 8 9 32 84 7 87 46 19 30 37 96 6 98 40 79 97 45 64 60 29 49 36 43 55
)
limits2=: 14 18 249 312 389 392 513 591 634 720
data2=: , 0&".;._2 noun define
445 814 519 697 700 130 255 889 481 122 932 77 323 525 570 219 367 523 442 933
416 589 930 373 202 253 775 47 731 685 293 126 133 450 545 100 741 583 763 306
655 267 248 477 549 238 62 678 98 534 622 907 406 714 184 391 913 42 560 247
346 860 56 138 546 38 985 948 58 213 799 319 390 634 458 945 733 507 916 123
345 110 720 917 313 845 426 9 457 628 410 723 354 895 881 953 677 137 397 97
854 740 83 216 421 94 517 479 292 963 376 981 480 39 257 272 157 5 316 395
787 942 456 242 759 898 576 67 298 425 894 435 831 241 989 614 987 770 384 692
698 765 331 487 251 600 879 342 982 527 736 795 585 40 54 901 408 359 577 237
605 847 353 968 832 205 838 427 876 959 686 646 835 127 621 892 443 198 988 791
466 23 707 467 33 670 921 180 991 396 160 436 717 918 8 374 101 684 727 749
)
limits1 < binnedData data1 NB. box/group binned data
┌──────────────────────────┬───────────┬─────┬─────────────────┬──────────────────────────┬──────────────┬──────────────────────────────────────┐
│21 12 4 5 17 16 8 9 7 19 6│32 30 29 36│37 40│52 47 46 45 49 43│57 53 65 61 54 58 64 60 55│70 75 80 71 79│95 94 99 83 93 86 92 83 84 87 96 98 97│
└──────────────────────────┴───────────┴─────┴─────────────────┴──────────────────────────┴──────────────┴──────────────────────────────────────┘
limits1 # binnedData data1 NB. tally binned data
11 4 2 6 9 5 13
limits2 printBinCounts limits2 # binnedData data2
3 in [ -∞, 14)
0 in [ 14, 18)
44 in [ 18, 249)
10 in [249, 312)
16 in [312, 389)
2 in [389, 392)
28 in [392, 513)
16 in [513, 591)
6 in [591, 634)
16 in [634, 720)
59 in [720, ∞]