"uninormalize" function

[abbradar]

Hi,

A small addition: would you be interested in adding a function for a vector normalization in [0;1] range? I haven't found a function for this, and it seems a good fit here; I imagine people reimplement it again and again. It's essentialy:

function uninormalize(v)
    min = minimum(v)
    max = maximum(v)
    if (min == max)
        fill!(copy(v), 0)
    else
        (v - min) / (max - min)
    end
end

If it's OK I can provide a PR.

[ararslan]

Hello! This seems like an okay idea to me. What's your reasoning for the name uninormalize? Is it a common convention to normalize to 0 if the input has only one unique value?

You can use extrema and tuple assignment to get the min and max at the same time, and zeros(v) in place of fill!(copy(v), 0).