reading variables in debug mode

[Free Email Service]

ear list,

I have a function with a keyobard statement in it. When Octave goes
into debug mode I try to see the  value of a variable defined in the
function but I\\\'m getting an error:
error: `a\\\' undefined near line 7 column 1
error: called from
    myfun at line 20 column 1
    mycode at line 35 column 8

where 

function b = myfun( x )
a = 2*x
keyboard
endfunction

Thank you,
Rob