Created
June 15, 2020 22:14
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ASCII scatterplot from coordinates
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| coords = [ | |
| Coordinate.new(x=0.0, y=1.8), | |
| Coordinate.new(x=1.5, y=2.2), | |
| Coordinate.new(x=2.8, y=3.5), | |
| Coordinate.new(x=5.0, y=4.2), | |
| Coordinate.new(x=2.0, y=4.2), | |
| ] | |
| class Coordinate | |
| attr_reader :x, :y | |
| def initialize(in_x, in_y) | |
| @x = in_x | |
| @y = in_y | |
| end | |
| end | |
| def scatterplot_coordinates(coordinates, length_x = 20, length_y = 20) | |
| max_value_x = coordinates.max_by(&:x).x | |
| max_value_y = coordinates.max_by(&:y).y | |
| increment_x = max_value_x / (length_x - 1) | |
| increment_y = max_value_y / (length_y) | |
| graph = Array.new(length_y) { Array.new(length_x, '.') } | |
| coordinates.each do |coordinate| | |
| x_index = (coordinate.x / increment_x).round() | |
| y_index = length_y - (coordinate.y / increment_y).round() | |
| graph[y_index][x_index] = 'X' | |
| end | |
| graph.each do |row| | |
| puts row.join(' ') | |
| end | |
| end | |
| scatterplot_coordinates(coords) |
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