Broom tidies a number of lists that are effectively S3
objects without a class attribute. For example, stats::optim()
,
svd() and interp::interp()
produce consistent output, but
because they do not have a class attribute, they cannot be handled by S3
dispatch.
These functions look at the elements of a list and determine if there is
an appropriate tidying method to apply to the list. Those tidiers are
implemented as functions of the form tidy_<function>
or
glance_<function>
and are not exported (but they are documented!).
If no appropriate tidying method is found, they throw an error.
glance_optim(x, ...)
A tibble::tibble()
with exactly one row and columns:
Convergence code.
Number of calls to `fn`.
Number of calls to `gr`.
Minimized or maximized output value.
A list returned from stats::optim()
.
Additional arguments. Not used. Needed to match generic
signature only. Cautionary note: Misspelled arguments will be
absorbed in ...
, where they will be ignored. If the misspelled
argument has a default value, the default value will be used.
For example, if you pass conf.lvel = 0.9
, all computation will
proceed using conf.level = 0.95
. Two exceptions here are:
tidy()
methods will warn when supplied an exponentiate
argument if
it will be ignored.
augment()
methods will warn when supplied a newdata
argument if it
will be ignored.
glance()
, stats::optim()
Other list tidiers:
list_tidiers
,
tidy_irlba()
,
tidy_optim()
,
tidy_svd()
,
tidy_xyz()
f <- function(x) (x[1] - 2)^2 + (x[2] - 3)^2 + (x[3] - 8)^2
o <- optim(c(1, 1, 1), f)
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