Class: Rubyspark::Spark

Inherits:

Object

• Object
• Rubyspark::Spark

Defined in:

lib/rubyspark.rb

Instance Method Summary

• #compute(x, distance) ⇒ Object
• #graphit ⇒ Object
• #initialize(data = []) ⇒ Spark constructor

  A new instance of Spark.

Constructor Details

#initialize(data = []) ⇒ Spark

Returns a new instance of Spark.

# File 'lib/rubyspark.rb', line 4

def initialize data = []
  @data = []
  data.cycle(1) { |x| @data.push(x.to_f) }
  graphit
end

Instance Method Details

#compute(x, distance) ⇒ Object

# File 'lib/rubyspark.rb', line 10

def compute x, distance
  (x / distance).round - 1
end

#graphit ⇒ Object

# File 'lib/rubyspark.rb', line 14

def graphit
  ticks = %w(▁ ▂ ▃ ▄ ▅ ▆ ▇)
  distance = @data.max.to_f / ticks.size
  puts @data.map { |x| compute(x, distance) <= 0 ? ticks[0] : ticks[compute(x, distance)] }.join('')
end