[R] Factor to Numeric

[Ivan Calandra]

Hi,

What about:
as.numeric(as.character(data$State))
?

Ivan

Le 5/26/2010 09:32, Mohan L a écrit :
> Dear All,
>
> I have a data frame with State and 12 Months as column. I want to convert
> all the 12 month column from factor to numeric.
> any help will be greatly appreciated.
>    
>> str(data)
>>      
> 'data.frame':    33 obs. of  9 variables:
>   $ State    : Factor w/ 33 levels "Andaman and Nicobar Islands",..: 1 2 3 4
> 5 6 7 8 9 10 ...
>   $ April    : Factor w/ 21 levels "0","1","10","116",..: 2 16 1 1 9 20 1 1 2
> 21 ...
>   $ August   : Factor w/ 18 levels "0","1","10","125",..: 1 14 1 1 9 3 1 1 2
> 5 ...
>   $ February : Factor w/ 19 levels "0","1","103",..: 1 15 1 1 2 6 2 1 2 14
> ...
>   $ January  : Factor w/ 19 levels "0","1","10","114",..: 1 15 1 1 11 12 2 1
> 1 4 ...
>   $ July     : Factor w/ 16 levels "0","1","122",..: 1 13 1 1 1 12 8 2 1 4
> ...
>   $ June     : Factor w/ 18 levels "0","1","10","119",..: 1 14 1 1 9 10 9 2 1
> 4 ...
>   $ May      : Factor w/ 20 levels "0","1","10","111",..: 2 19 1 1 10 15 1 1
> 1 5 ...
>   $ September: Factor w/ 19 levels "0","1","11","122",..: 1 18 1 1 14 3 2 1 2
> 9 ...
>
> Thanks&  Rg
> Mohan L
>
> 	[[alternative HTML version deleted]]
>
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>    

-- 
Ivan CALANDRA
PhD Student
University of Hamburg
Biozentrum Grindel und Zoologisches Museum
Abt. Säugetiere
Martin-Luther-King-Platz 3
D-20146 Hamburg, GERMANY
+49(0)40 42838 6231
ivan.calandra at uni-hamburg.de

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