[R] Issue writing correct code for Coursera assignment--performing matrix inversion

Duncan Murdoch
2015-02-19T22:06:06Z

On 19/02/2015 3:13 PM, Samuel Colon wrote:
> Hello All,
>
> I'm new to this mailing list, so please let me know if I've
committed any
> posting faux-pas.

Yes, you should probably be using the Coursera support resources instead
of this list.

Duncan Murdoch

>
> I'm working on an assignment for my Coursera course; please see my code
> below in which I have tried to write two functions--to perform the task of
> matrix inversion and then caching that data.  My code is below:
>
> makeCacheMatrix <- function(x = matrix()) {
>
>         i <- NULL
>
>         set <- function(y) {
>
>                 x <<- y
>
>                 i <<- NULL
>
>         }
>
>         get <- function() x
>
>         setinverse <- function(solve) i <<- solve
>
>         getinverse <- function() i
>
>         list(set = set, get = get, setinverse = setinverse,
>
>              getinverse = getinverse)
>
> }
>
>
>
> cacheSolve <- function(x, ...) {
>
>         i <- x$getinverse()
>
>         if(!is.null(i)) {
>
>                 message("getting cached data")
>
>                 return(i)
>
>         }
>
>         data <- i$get()
>
>         i <- solve(data, ...)
>
>         x$setinverse(i)
>
>         i
>
> }
>
> After I create a new matrix, x, and try to run cacheSolve(x), I receive
> this error: "attempt to apply non-function."
>
> I'm new to using the <<- operator, so I'm not sure if
that's where my error
> is?
>
> Can anyone suggest how I can go about debugging the above code?
>
> Thanks very much,
>
> Sam Colon
> Coursera Student
>
> 	[[alternative HTML version deleted]]
>
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