TalkativeTree

@function test($statement, $assertion, $expectation) {
  @if $assertion != $expectation {
    $result: "FAIL";
    @return "____ #{$result} ____ " + $statement + " ____ Expected #{$assertion} to equal EXPECTATION: #{$expectation}";
  }
  @if $assertion == $expectation {
    $result: "PASS";
    @return "____ #{$result} ____ " + $statement;
  }
}

TalkativeTree

# count_between is a method with three arguments:
#   1. An array of integers
#   2. An integer lower bound
#   3. An integer upper bound
#
# It returns the number of integers in the array between the lower and upper bounds,
# including (potentially) those bounds.
#
# If +array+ is empty the method should return 0
def count_between(array, lower_bound, upper_bound)

TalkativeTree

#median([1,2,3])      # => 2
#median([4.5, 0, -1]) # => 0
#median([-100, 100])  # => 0.0

def median(array)
  if array.length.odd?
    array.fetch(array.length / 2)
  elsif array.length.even?
    (array.fetch(array.length / 2 -1) + array.fetch(array.length / 2)) / 2.0
  end

TalkativeTree

def mode(array)
  freq = array.inject(Hash.new(0)) { |h,v| h[v] += 1; h }
  max = freq.values.max
  freq.select { |k, f|; (f==max) }.map {|k, f| k}
end

mode([1,2,2,3,3,4])

#Explanation of method order of processing method(array)
#freq = array.inject(Hash.new(0)) { |h,v| h[v] += 1; h }        

TalkativeTree

def combination(num_tosses)
  if num_tosses == 0
    potential_outcomes = 0
  elsif potential_outcomes = ["heads", "tails"].length ** num_tosses
  end
  return "There are #{potential_outcomes} potential outcomes"
end
puts combination(8) #=> "There are 256 potential outcomes"

# another way to do this is with #repeated_permutation

TalkativeTree

def print_triangle(n) 
  return if n.zero?
  result = []
  result << "*" * n
  
  print_triangle(n-1)
  puts result
end
print_triangel(4)
#=> *

TalkativeTree

class Account
  def initialize(first_name, last_name, acc_num, pin, check_bal, sav_bal)

    @first_name = first_name
    @last_name = last_name
    @acc_num = acc_num
    @pin = pin
    @check_bal = check_bal
    @sav_bal = sav_bal
    @balance = []

TalkativeTree

class SittingDucks

	def initialize filename
		@filename 	= filename
		@mortal_enemies = []
		@table_1 	= []
		@table_2 	= []
		@guest_list 	= []
		@guest   	= 0
	end

TalkativeTree

class Rectangle
  attr_accessor :width, :height
 
  def initialize(width, height)
    @width  = width
    @height = height
  end
 
  def ==(other)
    (other.width  == self.width && other.height == self.height ) ||

TalkativeTree

#i played around a lot with ideas of how to model the arrays/hashes. I decided to make the key of the hash a string, 
##because I wanted to use methods that only worked on strings and didn't want to keep using to_s.
#So I created one array that returns an array of the index of each 
#digit in the number we want to convert and another method that returns the pattern for each method.
#What I was thinking was using gsub to replace the values of the pattern 

@roman_digit_pattern = Hash["1" => 'X', 
  										 	"2" => 'XX', 
											 "3" => 'XXX',
											 "4" => 'XY',