Renumbering rows after ordering in R programme

Question

I have ordered a set of rows to get this:

2   1983  TRI-COUNTY  TRAUTH         0.1495 0.1395     NA      452 0.0764      4      0  06/02/83
4   1983  TRI-COUNTY          


        

Answer 1

This is the easiest way to do it:

rownames(dataset) = NULL

Answer 2

Another solution, normally used when binding rows:

dataset <- rbind( dataset , make.rows.names=FALSE )

Answer 3

Are you just looking for something like this?:

row.names(datasetname) <- 1:nrow(datasetname)

Alternatively, if the first column in your example data is a variable (say V1) in a dataframe and not the row.names, this will work:

datasetname$V1 <- 1:nrow(datasetname)