Initial commit of assignment rdpeng#2

jrincon23 · jrincon23 · commit efb664650287 · 2021-08-18T18:49:48.000-05:00
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,4 @@
+.Rproj.user
+.Rhistory
+.RData
+.Ruserdata
diff --git a/ProgrammingAssignment2.Rproj b/ProgrammingAssignment2.Rproj
@@ -0,0 +1,13 @@
+Version: 1.0
+
+RestoreWorkspace: Default
+SaveWorkspace: Default
+AlwaysSaveHistory: Default
+
+EnableCodeIndexing: Yes
+UseSpacesForTab: Yes
+NumSpacesForTab: 2
+Encoding: UTF-8
+
+RnwWeave: Sweave
+LaTeX: pdfLaTeX
diff --git a/cachematrix.R b/cachematrix.R
@@ -1,15 +1,32 @@
-## Put comments here that give an overall description of what your
-## functions do
+## Functions to cache a matrix inverse
 
-## Write a short comment describing this function
 
-makeCacheMatrix <- function(x = matrix()) {
+##Creates an special "matrix" object able to cache its inverse
 
+makeCacheMatrix <- function(x = matrix()) {
+  i <- NULL
+  set <- function(y){
+    x<<-y
+    i<<- NULL
+  }
+  get <- function() x
+  setinverse <- function(inverse) i<<- inverse
+  getinverse <- function() i
+  list(set = set, get = get, setinverse = setinverse, getinverse = getinverse)
 }
 
 
-## Write a short comment describing this function
+
+##Computes the inverse of the special "matrix"
 
 cacheSolve <- function(x, ...) {
-        ## Return a matrix that is the inverse of 'x'
+  i <- x$getinverse()
+  if(!is.null(i)){
+    message("getting cached data for the matrix inverse")
+    return(i)
+  }
+  mat <- x$get()
+  i <- solve(mat, ...)
+  x$setinverse(i)
+  i
 }
