| debug {base} | R Documentation |
Set or unset the debugging flag on a function.
debug(fun) undebug(fun)
fun |
any interpreted R function. |
When a function flagged for debugging is entered, normal execution
is suspended and the body of function is executed one statement at a time.
A new browser context is initiated for each step (and the previous one
destroyed).
Currently you can only debug functions that have bodies enclosed in braces.
This is a bug and will be fixed soon.
You take the next step by typing carriage return, n or next.
You can see the values of variables by typing their names.
Typing c or cont causes the debugger to continue to the
end of the function.
You can debug new functions before you step in to them from inside
the debugger.
Typing Q quits the current execution and returns you to the
top–level prompt.
If you have variables with names that are identical to the controls
(eg. c or n ) then you need to use print(c) and
print(n) to evaluate them.
browser, traceback to see the stack after
an Error: ... message.