Source code in the tcl programming language

namespace path {::tcl::mathop ::tcl::mathfunc}

# Not necessary but useful helper
proc lincr {_list index} {
	upvar $_list list
	lset list $index [+ [lindex $list $index] 1]
}

proc distribute_bins {binlims data} {
	set bins [lrepeat [+ [llength $binlims] 1] 0]
	foreach val $data {
		lincr bins [+ [lsearch -exact -integer -sorted -bisect $binlims $val] 1]
	}
	return $bins
}

proc print_bins {binlims bins} {
	set binlims [list -∞ {*}$binlims ∞]
	for {set i 0} {$i < [llength $bins]} {incr i} {
		puts "[lindex $binlims $i]..[lindex $binlims [+ $i 1]]: [lindex $bins $i]"
	}
}

set binlims {23  37  43  53  67  83}
set data {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}
print_bins $binlims [distribute_bins $binlims $data]
puts ""

set binlims {14  18  249  312  389  392  513  591  634  720}
set data {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}
print_bins $binlims [distribute_bins $binlims $data]