[R] GUI's for teaching
Marc R. Feldesman
feldesmanm at pdx.edu
Thu Jun 27 16:22:53 CEST 2002
At 05:03 AM 6/27/2002, Liaw, Andy wrote:
>My guess is that the args() function might help with the second problem, no?
Yes and no. I didn't mention args because can't use it "in real
time". That is, the problem often arises after the student has typed the
function name and the opening parenthesis. Its a bit tough to type args()
in the middle of typing the actual function whose arguments you're trying
to remember. It is also difficult in the middle of a string of cascading
One (?simple) solution might be context-sensitive help (F1?) that calls up
the argument list of the function closest to the point of invocation (e.g.
in this trivial example):
^ F1 after the "r" or "(" following "var" would bring up
the args for var().
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