How to convert an array to a dataframe?

General Usage
1 
column = rand(Int64, 10)
DataFrame(column,  [:col1])

This gives:

ERROR: ArgumentError: columns argument must be a vector of AbstractVector objects
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2

From the docs:

using DataFrames
df = DataFrame(A = 1:4, B = ["M", "F", "F", "M"])

In your case,

column = rand(Int64, 10)
df = DataFrame(col1 = column)

Note that when initializing, you don’t need to use symbols.

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3

You almost had it - the error is telling you that the first argument needs to be a vector of vectors, rather than a vector:

julia> using DataFrames

julia> column = rand(5);

julia> DataFrame([column], [:col1]) # Note the enclosing [] around column!
5×1 DataFrame
│ Row │ col1      │
│     │ Float64   │
├─────┼───────────┤
│ 1   │ 0.487455  │
│ 2   │ 0.439289  │
│ 3   │ 0.496783  │
│ 4   │ 0.0520202 │
│ 5   │ 0.661149  │
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