[R] delete a row in dataframe w/o changing indexing

[Phil Spector]

Nicolas -
    I don't think it can be done automatically, but
you can use

> row.names(pop) = 1:nrow(pop)

after deleting the column(s) to restore consecutive
numbers for the row names.

 					- Phil Spector
 					 Statistical Computing Facility
 					 Department of Statistics
 					 UC Berkeley
 					 spector at stat.berkeley.edu


On Tue, 8 Feb 2011, Nicolas Gutierrez wrote:

> Hi All,
>
> I'm trying to delete a row from my dataframe "pop" without changing the 
> indexing (column 0) as follows:
>
>> pop
>
>   id birth size xloc yloc weight energy gonad consumed
> 1   1    36   13   34   43      0     18     0        0
> 2   2    36   10   39   38      0     18     0        0
> 3   3    36   10   37   35      0     18     0        0
> 4   4    36   10   31   25      0     18     0        0
> 5   5    36   17   34   43      0     18     0        0
>
> By using:
>
>> i=3
>> pop=pop[-pop$id[i],]
>
>   id birth size xloc yloc weight energy gonad consumed
> 1   1    36   13   34   43      0     18     0        0
> 2   2    36   10   39   38      0     18     0        0
> 4   4    36   10   31   25      0     18     0        0
> 5   5    36   17   34   43      0     18     0        0
>
> But what I really need is:
>
>   id birth size xloc yloc weight energy gonad consumed
> 1   1    36   13   34   43      0     18     0        0
> 2   2    36   10   39   38      0     18     0        0
> 3   4    36   10   31   25      0     18     0        0
> 4   5    36   17   34   43      0     18     0        0
>
> *note the first column.
>
> Any ideas?
>
> THANKS!!!!
>
> Nico
>
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