trace                  package:base                  R Documentation

Trace All Calls to a Function.

Description:

     These are both in very primitive form. If `trace' is called the
     function named is marked and each time it is entered the call is
     printed on the console. To stop tracing a function use `untrace'.

Usage:

     trace(fun)
     untrace(fun)

Arguments:

     fun: any interpreted R function (not quoted).

See Also:

     `debug'.

Examples:

     trace(names)
     data.frame(x=1:2, y=3:4)
     untrace(names)

