[rrd-users] rpn equation

[R Dicaire]

On Sat, Nov 1, 2008 at 3:50 PM, Simon Hobson <linux at thehobsons.co.uk> wrote:
> Does vicecast have a value when this equation fails ? If it's not
> defined, then you have "something + nan" which has a result of nan.
>
> If that is the case, tehn you can use an "if" expression to set it to
> zero instead.

Indeed that is the case, and now I recall a discussion on that very
subject...could you give an example of an if statement please?

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