Get the highest value of an array in Lua

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#1 by (2 votes)
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I am using Lua code and want to get the largest value of an array. Example:

tem_array = {10,2,3,20,1}

I used this code below, but I get the number of elements and not the maximum:

max = math.max(unpack(tem_array))

lua

asked by anonymous 05.02.2015 / 16:12

2 answers

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tem_array = {10,2,3,20,1}
table.sort(tem_array, function(a,b) return a > b end)
print(tem_array[1])

24.05.2015 / 02:38

score 2 · Accepted Answer

The code you posted works as expected.

tem_array = {10, 2, 3, 20, 1}
arraymax = math.max(unpack(tem_array))

print (arraymax) -- 20

Another way is to sort the elements through sort() to place the elements in ascending order and pick the last one value.

tem_array = {10, 2, 3, 20, 1}
table.sort(tem_array, function(a,b) return a<b end)

print (tem_array[#tem_array]) -- 20

Or use the default behavior of sort() :

tem_array = {10, 2, 3, 20, 1}
table.sort(tem_array)

print (tem_array[#tem_array]) -- 20