The R Project SVN R

	(Wishlist PR#3424)

	(Wishlist PR#3424)

    o	*, - and / work more generally on "difftime" objects, which now

    o	*, - and / work more generally on "difftime" objects, which now

	have a diff() method.

	have a diff() method.

    o	dump() only quotes object names in the file where necessary.

    o	dump() only quotes object names in the file where necessary.

    o	eval() of a promise forces the promise

    o	eval() of a promise forces the promise

    o	New plot.design() function as in S.

    o	New plot.design() function as in S.

    o	The postscript() and PDF() drivers now allow the title to be set.

    o	The postscript() and PDF() drivers now allow the title to be set.

    o	power.t.test() now behaves correctly for negative delta in the

    o	power.t.test() now behaves correctly for negative delta in the

	two-tailed case.

	two-tailed case.

    o	power.t.test() and power.prop.test() now have a `strict'

    o	power.t.test() and power.prop.test() now have a `strict'

	levels.

	levels.

    o	symnum() has a new logical argument `abbr.colnames'.

    o	symnum() has a new logical argument `abbr.colnames'.

    o	summary(<logical>) now mentions NA's as suggested by

    o	summary(<logical>) now mentions NA's as suggested by

    o	summaryRprof() now prints times with a precision appropriate

    o	summaryRprof() now prints times with a precision appropriate

	to the sampling interval, rather than always to 2dp.

	to the sampling interval, rather than always to 2dp.

    o	New function Sys.getpid() to get the process ID of the R session.

    o	New function Sys.getpid() to get the process ID of the R session.

    o	Function vcov() (formerly in MASS), a generic function to

    o	Function vcov() (formerly in MASS), a generic function to

	return the variance-covariance matrix of the parameter

	return the variance-covariance matrix of the parameter

	estimates of a fitted model.

	estimates of a fitted model.

    o	duplicated() and unique() have methods for matrices and arrays

    o	duplicated() and unique() have methods for matrices and arrays

    o	Internally memory sizes and counts of cons cells are now stored

    o	Internally memory sizes and counts of cons cells are now stored

	in unsigned longs.  This allows memory limits to be set and

	in unsigned longs.  This allows memory limits to be set and

	objects created in the range 2-4Gb on 32-bit platforms, and

	objects created in the range 2-4Gb on 32-bit platforms, and

	allows 64-bit platforms to use much larger amounts of memory.

	allows 64-bit platforms to use much larger amounts of memory.

    o	round/trunc.POSIXt were erroneously retaining information on

    o	round/trunc.POSIXt were erroneously retaining information on

	DST. (PR#1543)

	DST. (PR#1543)

    o	tcltk package didn't work with tcl8.0.x.  Compatibility code

    o	tcltk package didn't work with tcl8.0.x.  Compatibility code

	this).

	this).

    o	selfStart() {pkg "nls"} now works again when parameter names are

    o	selfStart() {pkg "nls"} now works again when parameter names are

	not specified (but implicit).

	not specified (but implicit).