From 60867b731792f3a8f4f9a2f19b09941d4f3acb1d Mon Sep 17 00:00:00 2001
From: Guy Taylor <guy.taylor@gmail.com>
Date: Fri, 10 Apr 2015 15:19:43 +0200
Subject: [PATCH] Generating functions for caching inverted matrices

---
 cachematrix.R | 48 ++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 42 insertions(+), 6 deletions(-)

diff --git a/cachematrix.R b/cachematrix.R
index a50be65aa44..a231bf6f393 100644
--- a/cachematrix.R
+++ b/cachematrix.R
@@ -1,15 +1,51 @@
-## Put comments here that give an overall description of what your
-## functions do
+## cachematrix.r 
+##
+## makeCacheMatrix: creates special matrix for caching purposes
+##
+## cacheSolve: returns calculation of cached inversion of a matrix.
 
-## Write a short comment describing this function
+## makeCacheMatrix(x) --
+## creates a special matrix, which is really a list containing a function to
+## 1. set the value of the matrix
+## 2. get the value of the matrix
+## 3. set the value of the inversion of the matrix
+## 4. get the value of the inversion of the matrix
 
 makeCacheMatrix <- function(x = matrix()) {
-
+  m <- NULL
+  
+  # Set Methods
+  set <- function(y) {
+    x <<- y
+    m <<- NULL
+  }
+  get <- function() x
+  setInverse <- function(solve) <<- solve
+  getInverse <- function() m
+  
+  # Return a list of methods
+  list(set = set, get = get, setInverse = setInverse, getInverse = getInverse)
 }
 
 
-## Write a short comment describing this function
+## cacheSolve(x) --
+## calculates the inversion of a matrix. It first checks to see if a cached version exits (m)
+## if so it returns that cached version. Otherwise it calculates the what the inversion should be and creates
+## a cached copy.
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+  ## Return a matrix that is the inverse of 'x'
+  m <- x$getInverse()
+  
+  # Check if cached version exists
+  if(!is.null(m)) {
+    message("getting cached data")
+    return(m)
+  }
+  
+  # Create and return cached inversion of matrix
+  matrix <- x$get()
+  m <- solve(matrix)
+  x$setInverse(m)
+  m
 }