ms function).
browser.ms(info, theta, grad, scale, flags, fit.pars)This function can be supplied as the value of the
trace= argument to
function
ms.
The effect will be to put you into an interactive browser in a frame
containing all the information available about the current stage
of the iteration.
The first argument is split out into the following
variables:
niter,
nfun,
fvalue,
tracelevel,
deltaf,
pred.deltaf,
rel.detatheta,
step.scale,
d*step.scale.
The last two arguments are the integer and numeric working arrays of the
Fortran algorithm underlying
ms.
trace option is the better choice.
By a historical slip (that is, it got into the book that way), this
function has the name of a method for
browser for
ms objects.
It detects this case and acts appropriately, but it really ought to
have a different name, say
trace.ms.browser.
ms(~myobj(x, theta), data = my.pframe, trace = browser.ms)