Upstream changes:
Changes in Version 1.7-10
o All methods that had previously been fully exported (merge.zoo,
MATCH.default, ..., and many more) in order to be accessible to
_all_ conceivable generics are now additionally registered as
S3method()s for the standard generics. Exception: as.Date.* are
still only fully exported.
o Added a new mean() method for "zoo" objects that simply does
mean(coredata(obj), ...).
o Added yearmon_trans, scale_x_yearmon and scale_y_yearmon and
yearqtr_trans, scale_x_yearqtr and scale_y_yearqtr to ggplot2 interface.
o Removed the use of the shape and linetype aesthetic by default
in autoplot() method.
o Bug fix in na.fill for univariate series based on 1-column matrices
(provided by Josh Ulrich).
o Added [[ methods for "yearmon" and "yearqtr".
o Constructs like time(obj)[ORDER(time(obj))] are now split up into
two steps in the package code. If zoo is only imported but not
loaded, R can otherwise have problems correctly dispatching to
the new generics ORDER and MATCH.
o as.Date() now also works for yearqtr/yearmon that are all NA
(especially needed for format() and print() method).
Upstream changes:
Changes in Version 1.7-9
o Added ggplot2 interface through autplot() and fortify() methods. Also
support function facet_free().
Changes in Version 1.7-8
o Added rollsum.
o Bugfix in src/lag.c for the case of k > NROW.
An S3 class with methods for totally ordered indexed observations. It
is particularly aimed at irregular time series of numeric
vectors/matrices and factors. Zoo's key design goals are independence
of a particular index/date/time class and consistency with ts and base
R by providing methods to extend standard generics.
