[R] as.numeric is truncating!

[Peter Dalgaard]

ticspd wrote:
> I am trying to convert a string to  a double using "as.numeric"
> However, R is truncating the results!

No it isn't! As someone phrased it recently, there's a difference 
between an object and the display of an object. "Ceci n'est pas une pipe".

> Options(digits) is set to 7.

So numbers are _printed_ to 7-digit accuracy, yes. (And 116.28125 has 8 
digits.)

> Can anyone shed some light on this?

Subtract 116, and enlightenment should follow.


> Thanks!
> 
> 
>> b[1]
> [1] "116.28125"
> 
>> summary(b[1])
>    Length     Class      Mode 
>         1 character character 
> 
>> c <- as.numeric(b[1])
>> c
> [1] 116.2812
> 
> 
> 


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