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40 lines (35 loc) · 1.17 KB
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#makeCacheMatrix creates a matrix object that cache its inverse value for reuse
#It containing a list of function to
# set the value of the matrix
# get the value of the matrix
# set the value of the inverse matrix
# get the value of the inverse matrix
makeCacheMatrix <- function(x = matrix()) {
m <- NULL
set <- function(y) {
x <<- y
m <<- NULL
}
get <- function() x
setInverseMatrix <- function(InverseMatrix) m <<- InverseMatrix
getInverseMatrix <- function() m
list(set = set, get = get,
setInverseMatrix = setInverseMatrix,
getInverseMatrix = getInverseMatrix)
}
#The following function calculates the inverse matrix of makeCacheMatrix.
#It first checks to see if the inverse matrix has already been calculated.
#If yes, it gets the value from the cache and skips the computation.
#Otherwise, it calculates the inverse matrix of the data and sets the value of the inverse matrix
#in the cache via the setInverseMatrix function and return it.
cacheSolve <- function(x, ...) {
m <- x$getInverseMatrix()
if(!is.null(m)) {
message("getting cached data")
return(m)
}
data <- x$get()
m <- solve(data, ...)
x$setInverseMatrix(m)
m
}