# Bin given limits

Bin given limits
You are encouraged to solve this task according to the task description, using any language you may know.

You are given a list of n ascending, unique numbers which are to form limits for n+1 bins which count how many of a large set of input numbers fall in the range of each bin.

(Assuming zero-based indexing)

```   bin[0] counts how many inputs are < limit[0]
bin[1] counts how many inputs are >= limit[0] and < limit[1]
..
bin[n-1] counts how many inputs are >= limit[n-2] and < limit[n-1]
bin[n] counts how many inputs are >= limit[n-1]
```

The task is to create a function that given the ascending limits and a stream/ list of numbers, will return the bins; together with another function that given the same list of limits and the binning will print the limit of each bin together with the count of items that fell in the range.

Assume the numbers to bin are too large to practically sort.

Part 1: Bin using the following limits the given input data

```   limits  = [23, 37, 43, 53, 67, 83]
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]
```

Part 2: Bin using the following limits the given input data

```   limits = [14, 18, 249, 312, 389, 392, 513, 591, 634, 720]
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]
```

## C

<lang c>#include <stdio.h>

1. include <stdlib.h>

size_t upper_bound(const int* array, size_t n, int value) {

```   size_t start = 0;
while (n > 0) {
size_t step = n / 2;
size_t index = start + step;
if (value >= array[index]) {
start = index + 1;
n -= step + 1;
} else {
n = step;
}
}
return start;
```

}

int* bins(const int* limits, size_t nlimits, const int* data, size_t ndata) {

```   int* result = calloc(nlimits + 1, sizeof(int));
if (result == NULL)
return NULL;
for (size_t i = 0; i < ndata; ++i)
++result[upper_bound(limits, nlimits, data[i])];
return result;
```

}

void print_bins(const int* limits, size_t n, const int* bins) {

```   if (n == 0)
return;
printf("           < %3d: %2d\n", limits[0], bins[0]);
for (size_t i = 1; i < n; ++i)
printf(">= %3d and < %3d: %2d\n", limits[i - 1], limits[i], bins[i]);
printf(">= %3d          : %2d\n", limits[n - 1], bins[n]);
```

}

int main() {

```   const int limits1[] = {23, 37, 43, 53, 67, 83};
const int data1[] = {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};
```
```   printf("Example 1:\n");
size_t n = sizeof(limits1) / sizeof(int);
int* b = bins(limits1, n, data1, sizeof(data1) / sizeof(int));
if (b == NULL) {
fprintf(stderr, "Out of memory\n");
return EXIT_FAILURE;
}
print_bins(limits1, n, b);
free(b);
```
```   const int limits2[] = {14, 18, 249, 312, 389, 392, 513, 591, 634, 720};
const int data2[] = {
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};
```
```   printf("\nExample 2:\n");
n = sizeof(limits2) / sizeof(int);
b = bins(limits2, n, data2, sizeof(data2) / sizeof(int));
if (b == NULL) {
fprintf(stderr, "Out of memory\n");
return EXIT_FAILURE;
}
print_bins(limits2, n, b);
free(b);
```
```   return EXIT_SUCCESS;
```

}</lang>

Output:
```Example 1:
<  23: 11
>=  23 and <  37:  4
>=  37 and <  43:  2
>=  43 and <  53:  6
>=  53 and <  67:  9
>=  67 and <  83:  5
>=  83          : 13

Example 2:
<  14:  3
>=  14 and <  18:  0
>=  18 and < 249: 44
>= 249 and < 312: 10
>= 312 and < 389: 16
>= 389 and < 392:  2
>= 392 and < 513: 28
>= 513 and < 591: 16
>= 591 and < 634:  6
>= 634 and < 720: 16
>= 720          : 59
```

## C++

<lang cpp>#include <algorithm>

1. include <cassert>
2. include <iomanip>
3. include <iostream>
4. include <vector>

std::vector<int> bins(const std::vector<int>& limits,

```                     const std::vector<int>& data) {
std::vector<int> result(limits.size() + 1, 0);
for (int n : data) {
auto i = std::upper_bound(limits.begin(), limits.end(), n);
++result[i - limits.begin()];
}
return result;
```

}

void print_bins(const std::vector<int>& limits, const std::vector<int>& bins) {

```   size_t n = limits.size();
if (n == 0)
return;
assert(n + 1 == bins.size());
std::cout << "           < " << std::setw(3) << limits[0] << ": "
<< std::setw(2) << bins[0] << '\n';
for (size_t i = 1; i < n; ++i)
std::cout << ">= " << std::setw(3) << limits[i - 1] << " and < "
<< std::setw(3) << limits[i] << ": " << std::setw(2)
<< bins[i] << '\n';
std::cout << ">= " << std::setw(3) << limits[n - 1] << "          : "
<< std::setw(2) << bins[n] << '\n';
```

}

int main() {

```   const std::vector<int> limits1{23, 37, 43, 53, 67, 83};
const std::vector<int> data1{
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};
```
```   std::cout << "Example 1:\n";
print_bins(limits1, bins(limits1, data1));
```
```   const std::vector<int> limits2{14,  18,  249, 312, 389,
392, 513, 591, 634, 720};
const std::vector<int> data2{
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};
```
```   std::cout << "\nExample 2:\n";
print_bins(limits2, bins(limits2, data2));
```

}</lang>

Output:
```Example 1:
<  23: 11
>=  23 and <  37:  4
>=  37 and <  43:  2
>=  43 and <  53:  6
>=  53 and <  67:  9
>=  67 and <  83:  5
>=  83          : 13

Example 2:
<  14:  3
>=  14 and <  18:  0
>=  18 and < 249: 44
>= 249 and < 312: 10
>= 312 and < 389: 16
>= 389 and < 392:  2
>= 392 and < 513: 28
>= 513 and < 591: 16
>= 591 and < 634:  6
>= 634 and < 720: 16
>= 720          : 59
```

## Factor

Factor provides the `bisect-right` word in the `sorting.extras` vocabulary. See the implementation here. <lang factor>USING: assocs formatting grouping io kernel math math.parser math.statistics sequences sequences.extras sorting.extras ;

bin ( data limits -- seq )
```   dup length 1 + [ 0 ] replicate -rot
[ bisect-right over [ 1 + ] change-nth ] curry each ;
```
.bin ( {lo,hi} n i -- )
```   swap "%3d members in " printf zero? "(" "[" ? write
"%s, %s)\n" vprintf ;
```
.bins ( data limits -- )
```   dup [ number>string ] map "-∞" prefix "∞" suffix 2 clump
-rot bin [ .bin ] 2each-index ;
```

"First example:" print {

```   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
```

} { 23 37 43 53 67 83 } .bins nl

"Second example:" print {

```   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
```

} { 14 18 249 312 389 392 513 591 634 720 } .bins</lang>

Output:
```First example:
11 members in (-∞, 23)
4 members in [23, 37)
2 members in [37, 43)
6 members in [43, 53)
9 members in [53, 67)
5 members in [67, 83)
13 members in [83, ∞)

Second example:
3 members in (-∞, 14)
0 members in [14, 18)
44 members in [18, 249)
10 members in [249, 312)
16 members in [312, 389)
2 members in [389, 392)
28 members in [392, 513)
16 members in [513, 591)
6 members in [591, 634)
16 members in [634, 720)
59 members in [720, ∞)
```

## Go

<lang go>package main

import (

```   "fmt"
"sort"
```

)

func getBins(limits, data []int) []int {

```   n := len(limits)
bins := make([]int, n+1)
for _, d := range data {
index := sort.SearchInts(limits, d) // uses binary search
if index < len(limits) && d == limits[index] {
index++
}
bins[index]++
}
return bins
```

}

func printBins(limits, bins []int) {

```   n := len(limits)
fmt.Printf("           < %3d = %2d\n", limits[0], bins[0])
for i := 1; i < n; i++ {
fmt.Printf(">= %3d and < %3d = %2d\n", limits[i-1], limits[i], bins[i])
}
fmt.Printf(">= %3d           = %2d\n", limits[n-1], bins[n])
fmt.Println()
```

}

func main() {

```   limitsList := [][]int{
{23, 37, 43, 53, 67, 83},
{14, 18, 249, 312, 389, 392, 513, 591, 634, 720},
}
```
```   dataList := [][]int{
{
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,
},
{
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,
},
}
```
```   for i := 0; i < len(limitsList); i++ {
fmt.Println("Example", i+1, "\b\n")
bins := getBins(limitsList[i], dataList[i])
printBins(limitsList[i], bins)
}
```

}</lang>

Output:
```Example 1

<  23 = 11
>=  23 and <  37 =  4
>=  37 and <  43 =  2
>=  43 and <  53 =  6
>=  53 and <  67 =  9
>=  67 and <  83 =  5
>=  83           = 13

Example 2

<  14 =  3
>=  14 and <  18 =  0
>=  18 and < 249 = 44
>= 249 and < 312 = 10
>= 312 and < 389 = 16
>= 389 and < 392 =  2
>= 392 and < 513 = 28
>= 513 and < 591 = 16
>= 591 and < 634 =  6
>= 634 and < 720 = 16
>= 720           = 59
```

## Julia

Translation of: Python

<lang julia>"""Add the function Python has in its bisect library""" function bisect_right(array, x, low = 1, high = length(array) + 1)

```   while low < high
middle = (low + high) ÷ 2
x < array[middle] ? (high = middle) : (low = middle + 1)
end
return low
```

end

""" Bin data according to (ascending) limits """ function bin_it(limits, data)

```   bins = zeros(Int, length(limits) + 1)    # adds under/over range bins too
for d in data
bins[bisect_right(limits, d)] += 1
end
return bins
```

end

""" Pretty print the resulting bins and counts """ function bin_print(limits, bins)

```   println("          < \$(lpad(limits[1], 3)) := \$(lpad(bins[1], 3))")
for (lo, hi, count) in zip(limits, limits[2:end], bins[2:end])
end
```

end

""" Test on data provided """ function testbins()

```   println("RC FIRST EXAMPLE:")
limits  = [23, 37, 43, 53, 67, 83]
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]
bins = bin_it(limits, data)
bin_print(limits, bins)
```
```   println("\nRC SECOND EXAMPLE:")
limits = [14, 18, 249, 312, 389, 392, 513, 591, 634, 720]
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]
bins = bin_it(limits, data)
bin_print(limits, bins)
```

end

testbins()

</lang>
Output:
```RC FIRST EXAMPLE:
<  23 :=  11
>=  23 .. <  37 :=   4
>=  37 .. <  43 :=   2
>=  43 .. <  53 :=   6
>=  53 .. <  67 :=   9
>=  67 .. <  83 :=   5
>=  83          :=  13

RC SECOND EXAMPLE:
<  14 :=   3
>=  14 .. <  18 :=   0
>=  18 .. < 249 :=  44
>= 249 .. < 312 :=  10
>= 312 .. < 389 :=  16
>= 389 .. < 392 :=   2
>= 392 .. < 513 :=  28
>= 513 .. < 591 :=  16
>= 591 .. < 634 :=   6
>= 634 .. < 720 :=  16
>= 720          :=  59
```

## Phix

<lang Phix>function bin_it(sequence limits, data)

```   -- Bin data according to (ascending) limits.
sequence bins = repeat(0,length(limits)+1)  -- adds under/over range bins too
for i=1 to length(data) do
integer bdx = binary_search(data[i],limits)
bins[abs(bdx)+(bdx>0)] += 1
end for
return bins
```

end function

procedure bin_print(sequence limits, bins)

```    printf(1,"           < %3d := %3d\n",{limits[1],bins[1]})
for i=2 to length(limits) do
printf(1,">= %3d and < %3d := %3d\n",{limits[i-1],limits[i],bins[i]})
end for
printf(1,">= %3d           := %3d\n\n",{limits[\$],bins[\$]})
```

end procedure

sequence limits, data printf(1,"Example 1:\n") limits = {23, 37, 43, 53, 67, 83} 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}
```

bin_print(limits, bin_it(limits, data))

printf(1,"Example 2:\n") limits = {14, 18, 249, 312, 389, 392, 513, 591, 634, 720} 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}
```

bin_print(limits, bin_it(limits, data))</lang>

Output:
```Example 1:
<  23 :=  11
>=  23 and <  37 :=   4
>=  37 and <  43 :=   2
>=  43 and <  53 :=   6
>=  53 and <  67 :=   9
>=  67 and <  83 :=   5
>=  83           :=  13

Example 2:
<  14 :=   3
>=  14 and <  18 :=   0
>=  18 and < 249 :=  44
>= 249 and < 312 :=  10
>= 312 and < 389 :=  16
>= 389 and < 392 :=   2
>= 392 and < 513 :=  28
>= 513 and < 591 :=  16
>= 591 and < 634 :=   6
>= 634 and < 720 :=  16
>= 720           :=  59
```

## Python

This example uses binary search through the limits to assign each number to its bin, via standard module bisect.bisect_right.
The Counter module is not used as the number of bins is known allowing faster array access for incrementing bin counts versus dict lookup.

<lang python>from bisect import bisect_right

def bin_it(limits: list, data: list) -> list:

```   "Bin data according to (ascending) limits."
bins = [0] * (len(limits) + 1)      # adds under/over range bins too
for d in data:
bins[bisect_right(limits, d)] += 1
return bins
```

def bin_print(limits: list, bins: list) -> list:

```   print(f"          < {limits[0]:3} := {bins[0]:3}")
for lo, hi, count in zip(limits, limits[1:], bins[1:]):
print(f">= {lo:3} .. < {hi:3} := {count:3}")
print(f">= {limits[-1]:3}          := {bins[-1]:3}")
```

if __name__ == "__main__":

```   print("RC FIRST EXAMPLE\n")
limits  = [23, 37, 43, 53, 67, 83]
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]
bins = bin_it(limits, data)
bin_print(limits, bins)
```
```   print("\nRC SECOND EXAMPLE\n")
limits = [14, 18, 249, 312, 389, 392, 513, 591, 634, 720]
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]
bins = bin_it(limits, data)
bin_print(limits, bins)</lang>
```
Output:
```RC FIRST EXAMPLE

<  23 :=  11
>=  23 .. <  37 :=   4
>=  37 .. <  43 :=   2
>=  43 .. <  53 :=   6
>=  53 .. <  67 :=   9
>=  67 .. <  83 :=   5
>=  83          :=  13

RC SECOND EXAMPLE

<  14 :=   3
>=  14 .. <  18 :=   0
>=  18 .. < 249 :=  44
>= 249 .. < 312 :=  10
>= 312 .. < 389 :=  16
>= 389 .. < 392 :=   2
>= 392 .. < 513 :=  28
>= 513 .. < 591 :=  16
>= 591 .. < 634 :=   6
>= 634 .. < 720 :=  16
>= 720          :=  59```

## Raku

<lang perl6> sub bin_it ( @limits, @data ) {

```   my @ranges = ( -Inf, |@limits, Inf ).rotor( 2 => -1 ).map: { .[0] ..^ .[1] };
my @binned = @data.classify(-> \$d { @ranges.grep(-> \$r { \$d ~~ \$r }) });
my %counts = @binned.map: { .key => .value.elems };
return @ranges.map: { \$_ => ( %counts{\$_} // 0 ) };
```

} sub bin_format ( @bins ) {

```   return @bins.map: { .key.gist.fmt('%9s => ') ~ .value.fmt('%2d') };
```

}

my @tests =

```   {
limits => (23, 37, 43, 53, 67, 83),
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),
},
{
limits => (14, 18, 249, 312, 389, 392, 513, 591, 634, 720),
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
),
},
```

for @tests -> ( :@limits, :@data ) {

```   my @bins = bin_it( @limits, @data );
.say for bin_format(@bins);
say ;
```

} </lang>

Output:
```-Inf..^23 => 11
23..^37 =>  4
37..^43 =>  2
43..^53 =>  6
53..^67 =>  9
67..^83 =>  5
83..^Inf => 13

-Inf..^14 =>  3
14..^18 =>  0
18..^249 => 44
249..^312 => 10
312..^389 => 16
389..^392 =>  2
392..^513 => 28
513..^591 => 16
591..^634 =>  6
634..^720 => 16
720..^Inf => 59
```

## REXX

<lang rexx>/*REXX program counts how many numbers of a set that fall in the range of each bin. */ lims= 23 37 43 53 67 83 /* ◄■■■■■■1st set of bin limits & data.*/ 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
```

call lims lims; call bins data call show 'the 1st set of bin counts for the specified data:'

```                                                                 say;    say;    say
```

lims= 14 18 249 312 389 392 513 591 634 720 /* ◄■■■■■■2nd set of bin limits & data.*/ 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
```

call lims lims; call bins data call show 'the 2nd set of bin counts for the specified data:' exit 0 /*stick a fork in it, we're all done. */ /*──────────────────────────────────────────────────────────────────────────────────────*/ bins: parse arg nums; !.= 0; datum= words(nums); wc= length(datum) /*max width count.*/

```       do   j=1  for datum;  x= word(nums, j)
do k=0  for #                          /*find the bin that this number is in. */
if x < @.k  then do;  !.k= !.k + 1;  iterate j;  end        /*bump a bin count*/
end   /*k*/
!.k= !.k + 1     /*number is > the highest bin specified*/
end     /*j*/;                   return
```

/*──────────────────────────────────────────────────────────────────────────────────────*/ lims: parse arg limList; #= words(limList); wb= 0 /*max width binLim*/

```       do j=1  for #;  _= j - 1;   @._= word(limList, j);   wb= max(wb, length(@._) )
end   /*j*/;                     return
```

/*──────────────────────────────────────────────────────────────────────────────────────*/ show: parse arg t; say center(t, 51 ); \$= left(, 9) /*\$: for indentation*/

```                     say center(, 51, "═")                    /*show title separator.*/
jp= # - 1;        ge= '≥';              le='<'; eq= '   count='
do j=0  for #;    jm= j - 1;  bin= right(@.j, wb)
if j==0  then say \$ left(, length(ge) +3+wb+length(..) )le bin eq right(!.j, wc)
else say \$                 ge right(@.jm, wb) .. le bin eq right(!.j, wc)
if j==jp  then say \$ ge right(@.jp,wb) left(, 3+length(..)+wb) eq right(!.#, wc)
end   /*j*/;                     return</lang>
```
output   when using the internal default input:
``` the 1st set of bin counts for the specified data:
═══════════════════════════════════════════════════
< 23    count= 11
≥ 23 .. < 37    count=  4
≥ 37 .. < 43    count=  2
≥ 43 .. < 53    count=  6
≥ 53 .. < 67    count=  9
≥ 67 .. < 83    count=  5
≥ 83            count= 13

the 2nd set of bin counts for the specified data:
═══════════════════════════════════════════════════
<  14    count=   3
≥  14 .. <  18    count=   0
≥  18 .. < 249    count=  44
≥ 249 .. < 312    count=  10
≥ 312 .. < 389    count=  16
≥ 389 .. < 392    count=   2
≥ 392 .. < 513    count=  28
≥ 513 .. < 591    count=  16
≥ 591 .. < 634    count=   6
≥ 634 .. < 720    count=  16
≥ 720             count=  59
```

## Rust

Works with: rustc version 1.49.0

A very simple and naive algorithm that uses nested dynamic arrays.

<lang rust>fn make_bins(limits: &Vec<usize>, data: &Vec<usize>) -> Vec<Vec<usize>> {

```   let mut bins: Vec<Vec<usize>> = Vec::with_capacity(limits.len() + 1);
for _ in 0..=limits.len() {bins.push(Vec::new());}
```
```   limits.iter().enumerate().for_each(|(idx, limit)| {
data.iter().for_each(|elem| {
if idx == 0 && elem < limit              { bins[0].push(*elem); }             // smaller than the smallest limit
else if idx == limits.len()-1 && elem >= limit { bins[limits.len()].push(*elem); } // larger than the largest limit
else if elem < limit && elem >= &limits[idx-1] { bins[idx].push(*elem); }          // otherwise
});
});
```
```   bins
```

}

fn print_bins(limits: &Vec<usize>, bins: &Vec<Vec<usize>>) {

```   for (idx, bin) in bins.iter().enumerate() {
if idx == 0 {
println!("          < {:3} := {:3}", limits[idx], bin.len());
} else if idx == limits.len() {
println!(">= {:3}          := {:3}",  limits[idx-1], bin.len());
}else {
println!(">= {:3} .. < {:3} := {:3}", limits[idx-1], limits[idx], bin.len());
}
};
```

}

fn main() {

```   let limits1  = vec![23, 37, 43, 53, 67, 83];
let data1 = vec![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];
```
```  let limits2 = vec![14, 18, 249, 312, 389, 392, 513, 591, 634, 720];
let data2 = vec![
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
];
```

```   // Why are we calling it RC anyways???
println!("RC FIRST EXAMPLE");
let bins1 = make_bins(&limits1, &data1);
print_bins(&limits1, &bins1);
```
```   println!("\nRC SECOND EXAMPLE");
let bins2 = make_bins(&limits2, &data2);
print_bins(&limits2, &bins2);
```

} </lang>

Output:
```RC FIRST EXAMPLE
<  23 :=  11
>=  23 .. <  37 :=   4
>=  37 .. <  43 :=   2
>=  43 .. <  53 :=   6
>=  53 .. <  67 :=   9
>=  67 .. <  83 :=   5
>=  83          :=  13

RC SECOND EXAMPLE
<  14 :=   3
>=  14 .. <  18 :=   0
>=  18 .. < 249 :=  44
>= 249 .. < 312 :=  10
>= 312 .. < 389 :=  16
>= 389 .. < 392 :=   2
>= 392 .. < 513 :=  28
>= 513 .. < 591 :=  16
>= 591 .. < 634 :=   6
>= 634 .. < 720 :=  16
>= 720          :=  59
```

## Wren

Library: Wren-sort
Library: Wren-fmt

<lang ecmascript>import "/sort" for Find import "/fmt" for Fmt

var getBins = Fn.new { |limits, data|

```   var n = limits.count
var bins = List.filled(n+1, 0)
for (d in data) {
var res = Find.all(limits, d) // uses binary search
var found = res[0]
var index = res[2].from
if (found) index = index + 1
bins[index] = bins[index] + 1
}
return bins
```

}

var printBins = Fn.new { |limits, bins|

```   for (i in 0..limits.count) {
if (i == 0) {
Fmt.print("           < \$3d = \$2d", limits[0], bins[0])
} else if (i == limits.count) {
Fmt.print(">= \$3d           = \$2d", limits[i-1], bins[i])
} else {
Fmt.print(">= \$3d and < \$3d = \$2d", limits[i-1], limits[i], bins[i])
}
}
System.print()
```

}

var limitsList = [

```   [23, 37, 43, 53, 67, 83],
[14, 18, 249, 312, 389, 392, 513, 591, 634, 720]
```

]

var dataList = [

```   [
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
],
[
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
]
```

]

for (i in 0...limitsList.count) {

```   System.print("Example %(i+1):\n")
var bins = getBins.call(limitsList[i], dataList[i])
printBins.call(limitsList[i], bins)
```

}</lang>

Output:
```Example 1:

<  23 = 11
>=  23 and <  37 =  4
>=  37 and <  43 =  2
>=  43 and <  53 =  6
>=  53 and <  67 =  9
>=  67 and <  83 =  5
>=  83           = 13

Example 2:

<  14 =  3
>=  14 and <  18 =  0
>=  18 and < 249 = 44
>= 249 and < 312 = 10
>= 312 and < 389 = 16
>= 389 and < 392 =  2
>= 392 and < 513 = 28
>= 513 and < 591 = 16
>= 591 and < 634 =  6
>= 634 and < 720 = 16
>= 720           = 59
```