Nick Saukin nsauk
nsauk
/ puts_hist.rb
Last active
February 16, 2023 23:24
— forked from nevans/gist:9374041
simple ruby console histogram generator
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| # Pass in an enumeration of data and | |
| # (optionally) a block to extract the grouping aspect of the data. | |
| # | |
| # Optional: sort_by lambda (operates on group key and count) | |
| def puts_hist(data, sort_by: nil, &block) | |
| data = data.map(&block) if block | |
| counts = data.each_with_object(Hash.new(0)) { |k, h| h[k] += 1 } | |
| max = counts.values.max | |
| width = ENV['COLUMNS'].to_i |