julia - How to find the key for the min/max value of a Dict?

Question

I want to find the key corresponding to the min or max value of a dictionary in julia. In Python I would to the following:

my_dict = {1:20, 2:10}
min(my_dict, my         


        

Answer 1

If you only need the minimum value, you can use

minimum(values(my_dict))

If you need the key as well, I don't know a built-in function to do so, but you can easily write it yourself for numeric keys and values:

function find_min_key{K,V}(d::Dict{K,V})

    minkey = typemax(K)
    minval = typemax(V)

    for key in keys(d)
        if d[key] < minval
            minkey = key
            minval = d[key]
        end
    end

    minkey => minval
end

my_dict = Dict(1=>20, 2=>10)

find_min_key(my_dict)