Thank you and Sunder!
On Sat, May 2, 2009 at 8:49 PM, ronggui wrote:
>> eval(parse(text=expr))
> [1] 15
>
>
> 2009/5/2 Ning Ma :
>> Hi,
>>
>> I am new to R. Can anyone tell me how to evaluate an expression stored
>> in a string?
>> such as:
>>> expr <- "3*5"
>> I want to get the result 15.
>>
>>
> eval(parse(text=expr))
[1] 15
2009/5/2 Ning Ma :
> Hi,
>
> I am new to R. Can anyone tell me how to evaluate an expression stored
> in a string?
> such as:
>> expr <- "3*5"
> I want to get the result 15.
>
> Thanks in advance.
>
> __
> R-help@r-projec
Hi, Ning,
Try: eval(parse(text = expr))
HTH,
--sundar
On Sat, May 2, 2009 at 5:39 AM, Ning Ma wrote:
> Hi,
>
> I am new to R. Can anyone tell me how to evaluate an expression stored
> in a string?
> such as:
>> expr <- "3*5"
> I want to get the result 15.
>
> Thanks in advance.
>
> ___
Hi,
I am new to R. Can anyone tell me how to evaluate an expression stored
in a string?
such as:
> expr <- "3*5"
I want to get the result 15.
Thanks in advance.
__
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