Julia: "Method error" while calling a parametric function

Question

In a file named "func.jl", I defined the following function:

function testXYZ(xi::Array{T, 1}, yi::Array{T, 1}) where {T<:Float64}
    println("Success")
end

In "main.jl" I did build a minimum example:

include("func.jl");
xs = [0.0, 1.2, 2.0, 5.0, 10.0, 11.0]
ys = [2.0, 2.1, 1.0, 0.0, 0.0, 3.0]
testXYZ(xs, ys)

Checking with the console the types of xs and ys, I obtain as expected:

julia> ys = [2.0, 2.1, 1.0, 0.0, 0.0, 3.0];
julia> typeof(ys)
Array{Float64,1}

While exectuting the minimum example in main I obtain a method error:

ERROR: LoadError: MethodError: no method matching +(::Array{Float64,1}, ::String)

In Julia manual, I found lots of similar errors, but no one solved my problem.

Your minimal working example is actually working: tio.run/##VU/LaoUwFFz3fMUhKwMhqH0sbLu4m/… — mschauer
The error has nothing to do with the code above. It says that it cannot perform + with two arrays of floats which is fine, however there is no call of + in your example. I think you are mixing up your files maybe? — tamasgal
You may want to try restarting your Julia session to make sure the testXYZ function is defined the way you think it is. — StefanKarpinski

Joe22 Joe22 · Accepted Answer · 2019-12-05T05:56:06

From @tamasgal comment, the correct answer is: "The error hasnothing to do with the code above. It says that it cannot perform + with two arrays of floats which is fine, however there is no call of + in your example."

Julia: "Method error" while calling a parametric function

1 Answers