We have had some conversation within R core,
lead by Duncan Murdoch and me, about a proposal
to extend the current tracingState() functionality
by something tentatively called debuggingState().
Duncan has allowed me to copy the previous conversation
(after very minor editing):
The following is
Hello
> The value generated by Fortran's .TRUE. evaluates as "truthy" -- as in
> all(z[[1]]) -- but is neither equal to nor identical to TRUE. Its numeric
> conversion to -1 is most unusual, every other system I've tried converts to
> +1.
Please read the -fpscomp logicals option of ifort.
--
"\u
Interesting timing. I could have used this additional control
yesterday in class.
I am teaching a graduate Statistical Computing class. Last night I
went through the symbolic deriviatives (the deriv and D functions) in
Section 9.6 of the Blue Book. The D function is recursive. I
illustrated it
On 02/10/2014 11:55 AM, Richard M. Heiberger wrote:
Interesting timing. I could have used this additional control
yesterday in class.
I am teaching a graduate Statistical Computing class. Last night I
went through the symbolic deriviatives (the deriv and D functions) in
Section 9.6 of the Blue
>
> > I don't have much of an opinion on these questions. I've never used the
> > tracingState() function, though I use trace() all the time (via
> > setBreakpoint()). You might want to consult people who write debugger
> > front-ends.
>
> which I am now doing: I'm including ESS-core,
> Jonat
The possibility to temporarily turn off debugging sounds interesting. A
short comment at the end
Am 2014-10-02 um 16:55 schrieb Martin Maechler:
We have had some conversation within R core,
lead by Duncan Murdoch and me, about a proposal
to extend the current tracingState() functionality
by s
Just FYI: the 'debug' package lets you set a stop-before-exit, and of course
the ability to adjust breakpoints while the function is running. You can get
the current return value via 'get.retval()'.
There is some rough-edged support for debugging scripts, too.
Mark
Mark Bravington
CSIRO CMIS
M
