Dynamically generate DataFrame in function with number of columns determined by length of array arguments

General Usage
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What I mean to say is that having --- as a value in your DataFrame column is very awkward.

  1. It means your column are of type Vector{Any} which is bad for performance
  2. It means your vectors have an awkward string "----" in the middle.

PrettyTables allows you to have your data frame not include the "---" but display it with horizontal lines for legibility.