[R] How do you exit a function in R?

[Douglas Bates]

It looks like you want to stop the function execution on detecting an
error condition, in which case the appropriate function to call is
stop(), as in

if (nAssetPositions != nAssetPrices)
   stop("Different number of assets!")

An alternative, if you don't want to write the error messages for each
condition, is to use stopifnot(), as in

stopifnot(nAssetPositions == nAssetPrices)


On Thu, May 29, 2008 at 1:23 PM, Bill Cunliffe <bill at elevationllc.net> wrote:
> For example, based on a certain condition, I may want to exit my code early:
>
>
>
>            # Are there the same number of assets in "prices" and
> "positions"?
>
>            if (nAssetPositions != nAssetPrices) {
>
>                        cat("Different number of assets! \n\n")
>
>                        <exit function>
>
>            }
>
>
>
> I have searched, but not found, a way of forcing a function to exit.  Any
> help greatly appreciated.
>
>
>        [[alternative HTML version deleted]]
>
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