Question

I am working with a data set that has a column with values that I would like to transform.
The problem that I have right now is that my data looks like:

1. Site Count
2. 1 1 35
3. 1 10 38
4. 1 2 56
5. 1 3 23
6. 1 4 25
7. 1 5 45
8. …….

I would like to remove the 1 that is present in all the sites and just leave it 1, 2, 3, 4, 5… 10.

I tried to transform it using as.number but it gives me the site 1.10 as the second value so it is not right.

Answer 1

An example dataset:

dat = data.frame(site = paste(1, 1:10), 
                 count = round(runif(10, 1, 10)))

To get rid of the 1 bit:

dat$site = sub("1 ", "", dat$site)

Here I use sub to substitute the 1 by an empty string. The transformation to numeric then works:

dat$site = as.numeric(dat$site)
> dat$site
 [1]  1  2  3  4  5  6  7  8  9 10