cachematrix.R

## Below are two functions that are used to create a special object that stores
## a matrix and cache's its inverse

#The first function, makeCacheMatrix creates a special "matrix", which is
# really a list containing a function to
# set the value of the matrix
# get the value of the matrix
# set the value of the inverse
# get the value of the inverse
makeCacheMatrix <- function(x = matrix()) {
    s <- NULL

    set <- function(y) {
        x <<- y
        s <<- NULL
    }
    get <- function() x
    setInverse <- function(inverse) s <<- inverse
    getInverse <- function() s
    list(set = set, get = get,
         setInverse = setInverse, getInverse  = getInverse)
}


# The following function calculates the inverse of the special "matrix" created
# with the above function. However, it first checks to see if the inverse has
# already been calculated. If so, it gets the inverse from the cache and skips
# the computation. Otherwise, it calculates the inverse of the data and sets
# the value of the inverse in the cache via the setInverse function.

cacheSolve <- function(x, ...) {
    ## Return a matrix that is the inverse of 'x'
    inv <- x$getInverse()
    if (!is.null(inv)) {
        message("getting cached data")
        return(inv)
    }
    matrix <- x$get()
    inv <- solve(matrix)
    x$setInverse(inv)
    inv
}