[R] Date calculation

Jacques VESLOT jacques.veslot at good.ibl.fr
Fri Jun 9 15:45:17 CEST 2006


 > test
          V1    V2
1  5/2/2006 36560
2  5/3/2006 36538
3  5/4/2006 36452
4  5/5/2006 36510
5  5/8/2006 36485
6  5/9/2006 36502
7 5/10/2006 36584
8 5/11/2006 36571

 > dates <- strptime(test$V1, "%d/%m/%Y")

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stat stat a écrit :
> Dear all R users,
>    
>   Suppose I have a data frame "data" like this:
>    
>   5/2/2006      36560
>  5/3/2006     36538
>  5/4/2006     36452
>  5/5/2006     36510
>  5/8/2006     36485
>  5/9/2006     36502
>  5/10/2006     36584
>  5/11/2006    36571
>    
>   Now I want to create a for loop like this:
>    
>   date = "5/10/2006"
> for (i in 1: 8)
>    {
>     if (data[i,1] > date) break
>    }
>    
>   But I get error while executing this. Can anyone tell me the right way to do this?
>    
>   Sincerely yours
>   stat
> 
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