Get value of other options

.v(opt_name, name_is_character = NA)

Arguments

opt_name	name of the option, can be quoted or not quoted.
name_is_character	whether `opt_name` is a character, only used internally.

When setting one option, the value can be dependent on other option names. The current value of other option can be accessed by v(nm) or v$nm.

Zuguang Gu <z.gu@dkfz.de>

opt = set_opt(a = 1, b = function() .v$a*2)
opt$b
#> [1] 2
opt(a = 2); opt$b
#> [1] 4