Determine smallest (min) and biggest (max) numbers

support
1

Given front matter that looks like this:

   [[item]]
    number = 1
    [[item]]
    number = 2
    [[item]]
    number = 3

Is there a function to determine the smallest and biggest number?

I’m doing the following to calculate the average:

  {{$counter := 0}}
  {{$total := 0}}
  {{range .item}}
    {{$counter = add $counter 1}}
    {{$total = (add $total .number)}}
  {{end}} 
  {{div $total $counter}}

The number of items is variable.

2

not tested :frowning:

{{ range .Item sort "value" "Number" }} // Don't know if this works

The first value is the minimum, the last the maximum.

1 Like
3

Expanding on @ju52’s answer:

  • create an empty slice
  • range through your front matter, adding each number to the slice
  • sort the slice (default sort is ascending order)
  • use first function to get the min
    • or index function at 0
  • use last function to get the max
    • or index function at slice len minus 1
2 Likes
4

For future readers, code examples of the above:

{{ $list := slice 0 5 1 4 2 3 }}
{{ printf "Unsorted list: %d" $list }}

{{ $list := sort $list }}
{{ printf "Sorted list: %d" $list }}

{{ $min := index $list 0 }}
{{ printf "Min: %d" $min }}

{{ $length := len $list }}
{{ printf "Length: %d" $length }}

{{ $last_index := sub $length 1 }}
{{ printf "Last index: %d" $last_index }}

{{ $max := index $list $last_index }}
{{ printf "Max: %d" $max }}

Output:

Unsorted list: [0 5 1 4 2 3]

Sorted list: [0 1 2 3 4 5]

Min: 0

Length: 6

Last index: 5

Max: 5
3 Likes
5

Thanks for putting that together. I’m still making a few changes, but here’s my implementation in case it helps anyone.

{{$counter := 0}}
{{$number := slice}}
{{$total := 0}}

{{range .item}}
  {{$counter = add $counter 1}}
  {{$number = $number | append .number}}
  {{$total = add $total .number}}
{{end}} 
{{$number := sort $number}}

avg: {{div $total $counter}}
min: {{index $number 0}}
max: {{index $number (sub $counter 1)}}
1 Like
6 
$min := 0
$max := 0
$total := 0
$count := len .item

range .item

$total = add $total .number
if gt .number $max
   $max = .number

if lt .number $min
  $min = .number
2 Likes