

_E_n_v_i_r_o_n_m_e_n_t _B_r_o_w_s_e_r

     browser()

_V_a_l_u_e:

     A call to `browser' causes a pause in the execution of
     the current expression and runs a copy of the R inter-
     preter which has access to variables local to the
     environment where the call took place.  Local variables
     can be listed with `ls', and manipulated with R expres-
     sions typed to this sub-interpreter.  The interpreter
     copy is exited by typing `c'.  Execution then resumes
     at the statement following the call to `browser'.

     Typing `n' causes the step-through-debugger, to start
     and it is possible to step through the remainder of the
     function one line at a time.

_S_e_e _A_l_s_o:

     `debug', and `traceback' for the stack an error.

