Displaying 20 results from an estimated 20 matches for "dpqr".
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2004 Jul 04
1
Rmetrics 191.10057
...oo's web site.
2004-06-25 fBasics/R
The function "as.timeSeries" got two additional arguments which
allow to pass dimension names and the timeDate format in POSIX
notation to the returned "timeSeries" object.
2004-06-25 fSeries/R
New functions "[dpqr]ged" and "[dpqr]sged" have been added which
compute density, distribution function, quantile function and
generate random variates for the symmetric and skew generalized
error distribution.
2004-06-25 fSeries/R
New functions "[dpqr]std" and "[dpqr]sstd...
2002 Jan 11
2
new dgamma rate argument
Can someone explain to me in what way the new (dpqr)gamma parameter
can be interpreted as a rate (when shape != 1)? The only gamma rate
that I am aware of is the hazard rate given by dgamma/(1-pgamma), the
log of which is returned by my hgamma function (event library).
Jim
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...
2002 May 30
1
Documentation Bugs (PR#1618)
Just a few documentation "bugs" that I've noticed recently.
1. In the help for (dpqr)weibull(), the formula given for the
variance of a Weibull is wrong. The correct formula is
b^2 * sqrt(gamma(1 + 2/a) - (gamma(1 + 1/a))^2))
Note that I've also changed Gamma to gamma, which I think is
preferable since this is actually the name of the gamma() function
i...
2003 Nov 19
0
'nor1mix' for 1-dimensional normal mixture distributions
...ods, random number
generation ("r") and density evaluation.
It also provides the 16 "Marron-Wand densities" (known in the (1d)
density estimation business).
Erik J?rgensen has provided "p" and "q" functions -- such that
there's now the full range of "dpqr" functionality.
I have recently *renamed* the package to 'nor1mix' (now on CRAN
where 'normix' has gone).
Note that *estimation* (i.e. fitting normal mixtures to data) is
not part of this package, but rather in (the more general framework of)
the package 'mclust'....
2003 Nov 19
0
'nor1mix' for 1-dimensional normal mixture distributions
...ods, random number
generation ("r") and density evaluation.
It also provides the 16 "Marron-Wand densities" (known in the (1d)
density estimation business).
Erik J?rgensen has provided "p" and "q" functions -- such that
there's now the full range of "dpqr" functionality.
I have recently *renamed* the package to 'nor1mix' (now on CRAN
where 'normix' has gone).
Note that *estimation* (i.e. fitting normal mixtures to data) is
not part of this package, but rather in (the more general framework of)
the package 'mclust'....
2003 Jun 13
0
F -Fisher-Snedecor
I have seen in nmath directory that (dpqr)f is about F distribution.
The result obtained from these functions give the same result than
The F Fisher-Snedecor in cephes lib (from http://www.moshier.net/).
IIs it the same F (I think) and what's the difference between the two F.
Cheers, Greg
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2005 Dec 20
0
R 2.2.1 is released
...R was not
making Rmath.h.
o Both the R front-end and INSTALL could find the attempted
temporary directory name already in use on platforms without
mktemp (and a genuine Bourne shell /bin/sh, not bash). Now
both the process ID and a timestamp are used to create the
directory name.
o [dpqr]gamma now return NaN for an invalid 'shape' parameter
(rather than throw an error), for consistency with other
distribution functions.
o t() now longer drops dimnames 'list(NULL,NULL)' or 'list(NULL)'.
o Influence measures such as rstandard() and cooks.distance()...
2005 Dec 20
0
R 2.2.1 is released
...R was not
making Rmath.h.
o Both the R front-end and INSTALL could find the attempted
temporary directory name already in use on platforms without
mktemp (and a genuine Bourne shell /bin/sh, not bash). Now
both the process ID and a timestamp are used to create the
directory name.
o [dpqr]gamma now return NaN for an invalid 'shape' parameter
(rather than throw an error), for consistency with other
distribution functions.
o t() now longer drops dimnames 'list(NULL,NULL)' or 'list(NULL)'.
o Influence measures such as rstandard() and cooks.distance()...
2016 Jul 01
1
Calling C implementations of rnorm and friends
Well,
For this particular use case why not just transform the parameters at the R
level and then call the existing function? Is there not a closed form
mapping?
~G
On Jul 1, 2016 2:50 PM, "Joshua Ulrich" <josh.m.ulrich at gmail.com> wrote:
> On Fri, Jul 1, 2016 at 6:13 AM, Luis Usier
> <luis.henrique.usier at gmail.com> wrote:
> > Gabriel,
> >
> >
1998 Jun 14
5
R-beta: R-0.62 is released
...as(lm)
This is dangerous because it can be used to defeat the
call-by-value illusion.
o Many functions changed from <primitive> to .Internal(..).
Currently, new .Internal(.)s in ..library/base/R/New-Internal.R
Primitive functions are now printed as ``.Primitive(..)''.
o [dpqr]hyper(.) now also work with some 0 arguments.
o C-code: Many "-Wall" fixes (MM & DB).
o mva's dist() now takes arguments diag and upper which control
how the distance matrix is printed. plot.hclust() now takes a
labels argument.
o Attributes are now propagated cor...
1998 Jun 14
5
R-beta: R-0.62 is released
...as(lm)
This is dangerous because it can be used to defeat the
call-by-value illusion.
o Many functions changed from <primitive> to .Internal(..).
Currently, new .Internal(.)s in ..library/base/R/New-Internal.R
Primitive functions are now printed as ``.Primitive(..)''.
o [dpqr]hyper(.) now also work with some 0 arguments.
o C-code: Many "-Wall" fixes (MM & DB).
o mva's dist() now takes arguments diag and upper which control
how the distance matrix is printed. plot.hclust() now takes a
labels argument.
o Attributes are now propagated cor...
1998 Jun 14
5
R-beta: R-0.62 is released
...as(lm)
This is dangerous because it can be used to defeat the
call-by-value illusion.
o Many functions changed from <primitive> to .Internal(..).
Currently, new .Internal(.)s in ..library/base/R/New-Internal.R
Primitive functions are now printed as ``.Primitive(..)''.
o [dpqr]hyper(.) now also work with some 0 arguments.
o C-code: Many "-Wall" fixes (MM & DB).
o mva's dist() now takes arguments diag and upper which control
how the distance matrix is printed. plot.hclust() now takes a
labels argument.
o Attributes are now propagated cor...
2002 Oct 01
6
R-1.6.0 is released
...gigabytes. The setting of maximum vsize is now only
limited by the platform's address space.
o All warning and error messages are truncated to a length set
by options(warning.length=), defaulting to 1000. (Previously
most (but not quite all) were truncated at 8192 characters.)
o [dpqr]gamma() check for shape parameter > 0.
o as.POSIX[cl]t can now convert logical NAs.
o All installed packages (even those shipped with R) are
given a `Built' field in the DESCRIPTION file.
o as.data.frame() now coerces logical matrices into logical
columns (rather than factor...
2002 Oct 01
6
R-1.6.0 is released
...gigabytes. The setting of maximum vsize is now only
limited by the platform's address space.
o All warning and error messages are truncated to a length set
by options(warning.length=), defaulting to 1000. (Previously
most (but not quite all) were truncated at 8192 characters.)
o [dpqr]gamma() check for shape parameter > 0.
o as.POSIX[cl]t can now convert logical NAs.
o All installed packages (even those shipped with R) are
given a `Built' field in the DESCRIPTION file.
o as.data.frame() now coerces logical matrices into logical
columns (rather than factor...
2008 Apr 22
3
R 2.7.0 is released
...instead of numeric).
o file.create() has a new argument 'showWarnings' (default TRUE)
to show an informative warning when creation fails, and
dir.create() warns under more error conditions.
o New higher-order functions Find(), Negate() and Position().
o [dpqr]gamma(*, shape = 0) now work as limits of 'shape -> 0',
corresponding to the point distribution with all mass at 0.
o An informative warning (in addition to the error message) will
be given when the basic, extended or perl mode of grep(),
strsplit() and fri...
2008 Apr 22
3
R 2.7.0 is released
...instead of numeric).
o file.create() has a new argument 'showWarnings' (default TRUE)
to show an informative warning when creation fails, and
dir.create() warns under more error conditions.
o New higher-order functions Find(), Negate() and Position().
o [dpqr]gamma(*, shape = 0) now work as limits of 'shape -> 0',
corresponding to the point distribution with all mass at 0.
o An informative warning (in addition to the error message) will
be given when the basic, extended or perl mode of grep(),
strsplit() and fri...
2013 Apr 03
0
R 3.0.0 is released
...II demos: it defaults to the package encoding where there
is one.
o strwrap() converts inputs with a marked encoding to the current
locale: previously it made some attempt to pass through as bytes
inputs invalid in the current locale.
o Specifying both rate and scale to [dpqr]gamma is a warning (if
they are essentially the same value) or an error.
o merge() works in more cases where the data frames include
matrices. (Wish of PR#14974.)
o optimize() and uniroot() no longer use a shared parameter object
across calls. (nlm(), nlminb() and opti...
2013 Apr 03
0
R 3.0.0 is released
...II demos: it defaults to the package encoding where there
is one.
o strwrap() converts inputs with a marked encoding to the current
locale: previously it made some attempt to pass through as bytes
inputs invalid in the current locale.
o Specifying both rate and scale to [dpqr]gamma is a warning (if
they are essentially the same value) or an error.
o merge() works in more cases where the data frames include
matrices. (Wish of PR#14974.)
o optimize() and uniroot() no longer use a shared parameter object
across calls. (nlm(), nlminb() and opti...
2006 Apr 24
0
R 2.3.0 is released
...o window() did not allow non-overlapping ranges with
extend = TRUE. (PR#8545)
o pbinom(size = 0) now returns correct values (not NaN). (PR#8560)
o [dp]binom(x, *) for x < 0 now always returns 0. (PR#8700)
analogous change in pgeom(), pnbinom() and ppois().
o [dqpr]geom and [dpqr]nbinom() now all consistently accept prob = 1
but not prob = 0. qgeom(prob=1) now gives the correct values
(not -1).
o INSTALL on Unix-alikes was not loading dependent packages when
preparing for lazy-loading.
o qcauchy(1) now gives +Inf instead of just a very large number.
o df(...
2006 Apr 24
0
R 2.3.0 is released
...o window() did not allow non-overlapping ranges with
extend = TRUE. (PR#8545)
o pbinom(size = 0) now returns correct values (not NaN). (PR#8560)
o [dp]binom(x, *) for x < 0 now always returns 0. (PR#8700)
analogous change in pgeom(), pnbinom() and ppois().
o [dqpr]geom and [dpqr]nbinom() now all consistently accept prob = 1
but not prob = 0. qgeom(prob=1) now gives the correct values
(not -1).
o INSTALL on Unix-alikes was not loading dependent packages when
preparing for lazy-loading.
o qcauchy(1) now gives +Inf instead of just a very large number.
o df(...