tidy up

Author: monkstone

nature-of-code/xor_ruby/library/xor/lib/neuron.rb

@@ -1,3 +1,5 @@
+# Generic Neuron Class
+# Can be a bias neuron (true or false)
 class Neuron
   attr_reader :output, :connections, :bias
 
@@ -15,7 +17,7 @@ def calc_output
     return if bias #  do nothing
     sigmoid = ->(x) { 1.0 / (1.0 + Math.exp(-x)) }
     sum = 0
-    lbias = 0
+    bias_value = 0
     # fstring = 'Looking through %d connections'
     # puts(format(fstring, connections.size))
     connections.each do |c|
@@ -27,13 +29,13 @@ def calc_output
         #  This isn't really necessary
         #  Ttreating the bias individually in case needed to at some point
         if from.bias
-          lbias = from.output * c.weight
+          bias_value = from.output * c.weight
         else
           sum += from.output * c.weight
         end
       end
     end
     #  Output is result of sigmoid function
-    @output = sigmoid.call(lbias + sum)
+    @output = sigmoid.call(bias_value + sum)
   end
 end

nature-of-code/xor_ruby/xor.rb

@@ -1,3 +1,4 @@
+#!/usr/bin/env jruby
 require 'propane'
 # The Nature of Code
 # Daniel Shiffman
@@ -8,7 +9,6 @@ class Xor < Propane::App
   load_library :xor
 
   require_relative './landscape'
-  include_package 'nn'
 
   ITERATIONS_PER_FRAME = 5
 
@@ -23,11 +23,12 @@ def setup
     @nn = Network.new(2, 4)
     @count = 0
     # Create a list of 4 training inputs
-    @inputs = []
-    inputs << [1.0, 0]
-    inputs << [0, 1.0]
-    inputs << [1.0, 1.0]
-    inputs << [0, 0.0]
+    @inputs = [
+      [1.0, 0],
+      [0, 1.0],
+      [1.0, 1.0],
+      [0, 0.0]
+    ]
   end
 
   def draw

processing_app/basics/arrays/array.rb

@@ -7,12 +7,12 @@
 # In this example, an array named "coswave" is created using ruby
 # map with the cosine values. This data is displayed three
 # separate ways on the screen.
-class Array < Propane::App
+class SimpleArray < Propane::App
 
   attr_reader :coswave
 
   def setup
-    sketch_title 'Array'
+    sketch_title 'Simple Array'
     @coswave = (0..width).map do |i|
       Math.cos(map1d(i, (0..width), (0..PI))).abs
     end
@@ -34,4 +34,4 @@ def settings
   end
 end
 
-Array.new
+SimpleArray.new

processing_app/basics/arrays/array_2d.rb

@@ -1,12 +1,10 @@
 #!/usr/bin/env jruby
 require 'propane'
-
+# Demonstrates the use of :grid to create a two-dimensional (2D) array in ruby
+# Values in a 2D array are accessed through two index values.
+# 2D arrays are useful for storing images. In this example, each dot
+# is colored in relation to its distance from the center of the image.
 class Array2d < Propane::App
-  # Demonstrates the use of :grid to create a two-dimensional (2D) array in ruby
-  # Values in a 2D array are accessed through two index values.
-  # 2D arrays are useful for storing images. In this example, each dot
-  # is colored in relation to its distance from the center of the image.
-
   attr_reader :distances
 
   def setup