Would you help me? It seems very easy. There is error: Cannot convert an object of type Array{Int,2} to an object of type Int a=DataFrame(a=[1,2],c=[3,4],d=[5,6]) a[:,[:c ,:d]] = [1 2; 3 4]

Then do: a[:,[:c ,:d]] = DataFrame([1 2; 3 4], [:c, :d]) but this is not a recommended style in the long run as it is not efficient.

Array to DataFrames Columns. convert(Array{Float64,1}, a)

BMval September 3, 2019, 2:09pm 5

For some reasons I have only v0.18.4

Can it be due to Julia version 1.1.1

Is there other methods to do the same things?

thank you in advance

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