search for: dpqr

Displaying 20 results from an estimated 20 matches for "dpqr".

Did you mean: dplr
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 -------------- next part -------------...
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(...