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indmax

indmax(itr) -> Integer

Returns the index of the maximum element in a collection.

Examples

1. Find the index of the maximum element in an array:

   julia> arr = [5, 10, 3, 8, 2];
   julia> indmax(arr)
   2

   This example returns the index of the maximum element in the array arr.

2. Find the index of the maximum element in a vector of strings:

   julia> words = ["apple", "banana", "orange", "grape"];
   julia> indmax(words)
   3

   It returns the index of the maximum element in the vector of strings.

3. Handle edge cases when the maximum element is at the beginning or end:

   julia> numbers = [10, 5, 3, 7, 10];
   julia> indmax(numbers)
   1

   It correctly handles the case where the maximum element is at the beginning of the collection.

Common mistake example:

julia> arr = [];
julia> indmax(arr)
ERROR: MethodError: no method matching indmax(::Array{Any,1})

In this example, an empty array is passed to indmax. The function expects a non-empty collection, so it throws an error. Make sure to pass a valid collection to indmax to avoid such errors.

See Also

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