That's great! But, I guess I should have provided a better example for
my problem. The reason being that I did not consider strings. For
instance, in my case, I'm actually trying to add a value to a data frame
that looks like this:
Obs X
0 NA
1 01 001
2 01 002
3 01 003
And
On 11/06/11 18:14, jour4life wrote:
That's great! But, I guess I should have provided a better example for
my problem. The reason being that I did not consider strings. For
instance, in my case, I'm actually trying to add a value to a data frame
that looks like this:
Obs X
0 NA
1 01
your dataframe has X as a factor; convert to character vector and try again.
x$X - as.character(x$X)
Sent from my iPad
On Jun 11, 2011, at 2:14, jour4life jour4l...@gmail.com wrote:
That's great! But, I guess I should have provided a better example for
my problem. The reason being that I
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
11 0 1
20 0 1
31 1 1
40 1 1
51 1 0
60 0 0
I would like to change the value of the 4th observation in
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,
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