Allow the user to set and examine a variety of options
which affect the way in which Rcomputes and displays sparse
matrix results.
Usage
spam.options(...)
spam.getOption(x)
Arguments
...
any options can be defined, using name = value or
by passing a list of such tagged values. However, only the ones
below are used in spam.
Further, spam.options('name') == spam.options()['name'], see the
x
a character string holding an option name.
Value
For spam.getOption, the current value set for option x, or
NULL if the option is unset.
For spam.options(), a list of all set options sorted by category. For
spam.options(name), a list of length one containing the set value,
or NULL if it is unset. For uses setting one or more options,
a list with the previous values of the options changed (returned
invisibly).
Details
Invoking spam.options() with no arguments returns a list with the
current values of the options. To access the value of a single option, one should
use spam.getOption("eps"), e.g., rather than
spam.options("eps") which is a list of length one.
Internally, the options are kept in the list .Spam.