[R] help with table partition

[Jacques VESLOT]

do.call(cbind, split(as.data.frame(test_table), rep(1:170,each=366)))
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Jacques VESLOT

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Wong, Kim a écrit :
> Hi,
> 
>  
> 
> I have a test_table where the dim is 62220 by 73 (row by col)
> 
>  
> 
> I would like to partition the rows into 170 equal parts (170 tables
> where each is of dim 366 by 73), and rearrange them horizontally. The
> source codes I have:
> 
>  
> 
> for (i in 1:170) {
> 
>             c = cbind(c,test_table[(367*i+1):(367*(i+1)),2:73]);
> 
>       }
> 
>  
> 
> Unfortunately, using for loop and cbind for a table of this size causes
> long running time.  What is the most efficient way to get the table that
> I want? 
> 
>  
> 
> Thanks for any help.
> 
> K.
> 
> 
> 
> 
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