Convert float type array to Int

General Usage
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1

Hi,
I have been trying to convert the array type to Int for

a = [3.0 2.0;2.0 4.0;7.0 8.0]

I tried convert function and used loops but have not received the required output:

a = [3 2;2 4;7 8]

Thanks

2 
round.(Int, a)
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3

You can use convert:

a = [3.0 2.0;2.0 4.0;7.0 8.0]
b = convert(AbstractArray{Int}, a)

Note that you cannot change the element type of an existing array, you must always allocate a new one if you want it to have a different type. But you can of course still use the same variable name for the new array (a = convert(AbstractArray{Int}, a)).

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4

Or

convert.(Int, a)
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5

Or maybe just

Int.(a)
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6

For completeness, there is also

julia> trunc.(Int,a)
3×2 Array{Int64,2}:
 3  2
 2  4
 7  8

It will always round toward zero.

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You have to decide what you want to happen when one of your floats isn’t an integer. What should happen to [1.0, 2.1]? Should it round to some integer value or throw an error. The correct solution depends on what you want.

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