ggtitle_spct()
retrieves from object object
metadata and
passes it to ggplot2::ggtitle()
as arguments for title
and
subtitle
. The specification for the tittle is passed as argument
to annotations
, and consists in the keyword title
with optional
modifiers selecting the kind of metatdata to use, separated by colons.
"objt", "class", "what", "when", "where", "inst.name", "inst.sn" and "none"
are recognized as modifiers to "title".