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cachematrix.R
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35 lines (32 loc) · 1.08 KB
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## enable creation of a matrix like object with the ability to cache the inversion function
## usage:
## - m <- makeCacheMatrix( matrix( 1:4, nrow=2, ncol=2 ) )
## - cacheSolve( m )
## create a matrix that can be passed to cacheSolve, which solves and caches the inversion function
makeCacheMatrix <- function(x = matrix()) {
m <- NULL
set <- function(y) {
x <<- y
m <<- NULL
}
get <- function() x
setsolve <- function(solve) m <<- solve
getsolve <- function() m
list(set = set, get = get,
setsolve = setsolve,
getsolve = getsolve)
}
## accepts as a parameter the object created by makeCacheMatrix
## solves the matrix and caches the result; returns this result if called again
cacheSolve <- function(x, ...) {
## Return a matrix that is the inverse of 'x'
m <- x$getsolve()
if(!is.null(m)) {
message("getting cached data")
return(m)
}
data <- x$get()
m <- solve(data, ...)
x$setsolve(m)
m
}