completed assignment - before testing.

brobie · brobie · commit ca50649d93b4 · 2014-05-22T16:40:56.000-05:00
diff --git a/.gitignore b/.gitignore
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+.Rproj.user
+.Rhistory
+.RData
diff --git a/ProgrammingAssignment2.Rproj b/ProgrammingAssignment2.Rproj
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+Version: 1.0
+
+RestoreWorkspace: Default
+SaveWorkspace: Default
+AlwaysSaveHistory: Default
+
+EnableCodeIndexing: Yes
+UseSpacesForTab: Yes
+NumSpacesForTab: 4
+Encoding: UTF-8
+
+RnwWeave: Sweave
+LaTeX: pdfLaTeX
diff --git a/cachematrix.R b/cachematrix.R
@@ -1,15 +1,36 @@
-## Put comments here that give an overall description of what your
-## functions do
+## These functions provide a way to create an inverted matrix, and everytime 
+## thereafter return a cached version of the matrix until another
+## matrix is inverted.
 
-## Write a short comment describing this function
+## This function provides access to set and get a cached version of a matrix.
 
 makeCacheMatrix <- function(x = matrix()) {
-
+    im <- NULL
+    set <- function(y) {
+        x <<- y
+        im <<- NULL
+    }
+    get <- function() x
+    setsolve <- function(inMatrix) im <<- inMatrix
+    getsolve <- function() im
+    list(set = set, get = get,
+         setsolve = setsolve,
+         getsolve = getsolve)
 }
 
 
-## Write a short comment describing this function
+## This function returns an inverse of the matrix given to the makeCacheMatrix
+## function.  If the matrix has already been inverted and cached, it will return
+## the cached version, otherwise, it will invert and then cache the matrix.
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+    m <- x$getsolve()
+    if(!is.null(m)) {
+        message("getting cached matrix")
+        return(m)
+    }
+    data <- x$get()
+    m <- solve(data, ...)
+    x$setsolve(m)
+    m
 }

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	`3`	`+.RData`