Retrieve or modify the row or column labels.
These functions allow the row or column labels of a tabular object to be retrieved or modified.
rowLabels(x) rowLabels(x) <- value colLabels(x) colLabels(x) <- value ## S3 method for class 'tabularRowLabels' x[i, j, ..., drop = FALSE] ## S3 method for class 'tabularColLabels' x[i, j, ..., drop = FALSE]
x |
A |
value |
A replacement |
i, j, ..., drop |
Arguments used for subsetting the labels. See Details below. |
Subsetting the row labels does not allow the number of rows
to be changed; likewise, subsetting the column labels does
not allow the number of columns to be changed. To change both,
subset the original "tabular" object.
rowLabels and the corresponding subsetting method
return an object of class "tabularRowLabels".
colLabels and the corresponding subsetting method
return an object of class "tabularColLabels".
The assignment functions return "tabular" objects.
tab <- tabular( (Species + 1) ~ (n=1) + Format(digits=2)*
(Sepal.Length + Sepal.Width)*(mean + sd), data=iris )
colLabels(tab)
colLabels(tab) <- colLabels(tab)[1,]
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