b1df4d1810
Changes:
o New .DollarNames method (contributed by Josh Ulrich) to enable tab
completion when using zoo_object$...
o New default method for zoo::as.Date() that simply dispatches to
base::as.Date().
o rollapply(x, k, FUN, align = "right") lead to an error if length(x) < k.
This has been corrected to match the behavior of the other align types.
o rollmean(), rollsum(), rollmedian(), and rollmax() no longer throw an
error if the series is shorter than the window size. Instead rollapply()
is called which either returns an empty series (if "fill" is not specified)
or a padded series (if "fill" is specified, e.g., to NA).
o read.zoo() now also handles "tbl" objects by coercing them to proper
"data.frame"s first. Also gained a read = read.table argument to simplify
convenience interfaces read.csv.zoo() etc.
o The fortify() method gained a "names" argument so that the column names
of the (melted) series can be modified.
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