Re: Rounding off in AppleScript
Re: Rounding off in AppleScript
- Subject: Re: Rounding off in AppleScript
- From: Paul Berkowitz <email@hidden>
- Date: Tue, 12 Apr 2005 20:33:38 -0700
Why do you see that as an advantage, Scott? To do one or a few roundings
makes no difference for efficiency, but to do hundreds in a repeat loop you
would be _much_ better off using Vince's script "adding 0.5 and applying
integer division by 1". 'round' is a scripting addition call, and will be
close to 100 times slower than pure AppleScript. Easier to read, true, so if
you're just doing it once or a few times, by all means use it.
--
Paul Berkowitz
> From: Scott Babcock <email@hidden>
> Date: Tue, 12 Apr 2005 20:13:51 -0700
> To: <email@hidden>
> Subject: RE: Rounding off in AppleScript
>
> Try this:
>
> on RoundOff(num, precis)
> set factor to 10 ^ precis
> return ((round(num * factor)) / factor)
> end RoundOff
>
> This uses the 'round' osax instead of adding 0.5 and applying integer
> division by 1. The asax works correctly for negative numbers as well as
> positive numbers, rounding to the nearest integer.
>
> -----Original Message-----
> Hello list,
>
> Does there exist any AppleScript primitive that rounds off a floating
> point number up to a desired number of decimal points, e.g.
>
> RoundOff(4.213452, 2)
>
> Could round off the number and return me 4.21
>
> And similarly
>
> RoundOff(4.98123, 0)
> Returns me 5.00
>
> TIA.
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