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| gem 'nyaplot', '0.1.5' | |
| require 'nyaplot' | |
| require 'mapnya' | |
| raw_df = Nyaplot::Countries.df | |
| hash = [:name, :lat, :lng, :area].map{|label| {label => raw_df.column(label).to_a}}.reduce({}){|memo, hash| memo.merge(hash)} | |
| df = Nyaplot::DataFrame.new(hash) | |
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