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NEWS
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NEWS
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Changed in xts 0.8-1:
o Dependency now on 1.7-0 or better of zoo (R-forge at present)
This build now links to C code moved from xts to zoo. At present
this is only for zoo_lag (used in lag and lagts)
Changes in xts 0.7-5:
o try.xts and reclass now are more efficient on xts objects,
no longer appending a .RECLASS attribute. This penalty
(copying) is shifted to classes that are internally converted
to xts.
Changes in xts 0.7-4:
o internal attributes of index are now maintaining
timezone (tzone), time class (tclass) information.
o `[.xts` method is now using new C code. This may revert
back as character-based objects are not supported. Changed
for future code refactoring into zoo, as well as performance
gains on integer, double and logical values. Also added in
checks for NAs. drop=TRUE now works correctly in all known
applications.
o (cbind)merge.xts and rbind.xts now copy index attributes
to handle internal changes to index characteristics (in C code)
o indexTZ.Rd updated to provide information regarding internal
changes. Also indexTZ<- is now exported to facilitate
timezone changing of xts objects.
Changes in xts 0.7-1:
o subsecond ISO8601 subsetting on dates
before 1970 (epoch) is disabled. This is due to a bug
in the R implementation of POSIX handling of fractional
seconds pre-1970. 10 microsecond granularity is still
functional for all other times. Thanks to Andreas Noack Jensen
for the early bug report.
o new 'tzone' arg in xts constructor and 'tz' in .parseISO8601
allows for future support of non-system TZ dependent indexing
o internal index attribute (numeric) now can have attributes
set (tzone is currently the only one used in xts). These should
remain during all xts operations. Still experimental.
o naCheck has been exposed at the C level for use in packages
"LinkingTo: xts". See ?xtsAPI for more details.
Changes in xts 0.7-0:
o A new NEWS file.
o print.xts now passes ...
o endpoints speedup and bug fix (thanks Ismail Onur Filiz)
o na.omit bug on logical and NaN fixes (thanks Fabrizio Pollastri
and Koert Kuipers)
o fromLast=FALSE for na.locf.xts. Matching to zoo. (thanks
to Sandor Benczik)
o LGLSXP support in leadingNA (R fun naCheck)
o fixed logical and NA 'j' subsetting. Thanks Koert Kuipers.
o as.xts and as.timeSeries fixes for timeSeries changes
o merge and subset now support dimensionless xts (non-standard).
merge segfault fixed when merging all 3 or more zero-width xts objects
and only zero-width objects. Thanks to Koert Kuipers for the report.
o added which.i to [.xts to return i values found via
ISO8601 subset string
o new lines.xts and plot.xts, similar to methods in zoo
o lastof now has sec to 10 microsecond precision, and subsec
arg to append to secs.
o xts() further consistency in NROW/index check
o align.time error checks for positive n= values (thanks Brian Peterson)
o toPeriod updates in C, almost exported. ~600-1200x faster
o new lag_xts in C. Increased speed and index flexibility.
o endpoints 'days' bug fix
o .makeISO8601 function to create ISO8601 compliant string
from xts objects