Position of Row Names

These functions return the indices of the supplied row names of a data frame or names of another object, such as a vector or list. whichNames is just an alias for which.names.

whichNames(names, object, ...)

which.names(names, object, ...)

# S3 method for class 'data.frame'
whichNames(names, object, ...)

# Default S3 method
whichNames(names, object, ...)

Arguments

names

a name or character vector of names.

object

a data frame or an object with a names attribute.

...

not used.

Value

Returns the index or indices of names in row names of the data frame or names of an object of another class.

Author

John Fox jfox@mcmaster.ca

References

Fox, J. and Weisberg, S. (2019) An R Companion to Applied Regression, Third Edition, Sage.

Examples

whichNames(c('minister', 'conductor'), Duncan)
#>  minister conductor 
#>         6        16