[R] converting string fractions to numerics

[R. Michael Weylandt <michael.weylandt@gmail.com>]

I would imagine that you could parse+evaluate it like you asked about on another thread; this isn't tested though. Does that work in your context?

Michael Weylandt

On Oct 19, 2011, at 2:30 AM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:

> Dear R People:
> 
> Suppose I have the following:
> 
> "pi/2"
> 
> and I would like it to be 1.57.....
> 
> Using as.numeric, here is my result:
> 
>> as.numeric("pi/2")
> [1] NA
> Warning message:
> NAs introduced by coercion
>> 
> 
> Is there a way to produce the numeric result, please?
> 
> Thanks,
> Erin
> 
> 
> -- 
> Erin Hodgess
> Associate Professor
> Department of Computer and Mathematical Sciences
> University of Houston - Downtown
> mailto: erinm.hodgess at gmail.com
> 
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