Mechanism to extract and replace the core data of an xts object.
# S3 method for xts
coredata(x, fmt = FALSE, ...)xcoredata(x, ...)
xcoredata(x) <- value
Returns either a matrix object for coredata, or a list of named attributes.
The replacement functions are called for their side-effects.
An xts object.
Should the rownames be formated using tformat()? Alternatively
a date/time string to be passed to format(). See details.
Unused.
Non-core attributes to assign.
Jeffrey A. Ryan
Extract coredata of an xts object - removing all attributes except
dim and dimnames and returning a matrix object with rownames
converted from the index of the xts object.
The rownames of the result use the format specified by tformat(x) when
fmt = TRUE. When fmt is a character string to be passed to format().
See strptime() for valid format strings. Setting fmt = FALSE will
return the row names by simply coercing the index class to a character
string in the default manner.
xcoredata() is the complement to coredata(). It returns all of the
attributes normally removed by coredata(). Its purpose, along with the
the replacement function xcoredata<- is primarily for developers using
xts' try.xts() and reclass() functionality inside functions
so the functions can take any time series class as an input and return the
same time series class.
coredata(), xtsAttributes()
data(sample_matrix)
x <- as.xts(sample_matrix, myattr=100)
coredata(x)
xcoredata(x)
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