[R] change value in one cell

[jim holtman]

you probably need to read the Introduction to R to understand indexing:

> x
  Obs X Y Z
1   1 1 0 1
2   2 0 0 1
3   3 1 1 1
4   4 0 1 1
5   5 1 1 0
6   6 0 0 0
> x[4, "Y"] <- 0
> x
  Obs X Y Z
1   1 1 0 1
2   2 0 0 1
3   3 1 1 1
4   4 0 0 1
5   5 1 1 0
6   6 0 0 0


On Fri, Jun 10, 2011 at 5:42 PM, jour4life <jour4life at gmail.com> wrote:
> Hello all,
>
> I am wondering if there is a way to change the value of one cell in R. For
> instance let's say I have a hypothetical data frame that looks like this:
>
> Obs X Y Z
> 1    1 0 1
> 2    0 0 1
> 3    1 1 1
> 4    0 1 1
> 5    1 1 0
> 6    0 0 0
>
> I would like to change the value of the 4th observation in the Y column from
> 1 to 0. It should look like this:
>
> Obs X Y Z
> 1    1 0 1
> 2    0 0 1
> 3    1 1 1
> 4    0 0 1
> 5    1 1 0
> 6    0 0 0
>
> Is it possible to change the value in one command?
>
> Thanks,
>
> Carlos
>
>
> --
> View this message in context: http://r.789695.n4.nabble.com/change-value-in-one-cell-tp3589456p3589456.html
> Sent from the R help mailing list archive at Nabble.com.
>
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>



-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?