Displaying 6 results from an estimated 6 matches for "dbinom_raw".
2001 Feb 08
2
dnbinom(,size<1,)=0 (PR#842)
This came up on r-help but indicates a bug.
dnbinom(x,n,p) calls dbinom_raw(n-1,...)
which returns 0 for n<1.
-thomas
---------- Forwarded message ----------
Date: Thu, 08 Feb 2001 17:10:23 +0000
From: Yudi Pawitan <yudi@stat.ucc.ie>
To: Mark Myatt <mark@myatt.demon.co.uk>
Cc: R-Help <r-help@stat.math.ethz.ch>
Subject: Re: [R] Goodness of fit to Po...
2008 Jul 04
1
update on dnbinom with large "size"
...0.5),col=2,lty=2)
text(1,dpois(1,lambda=0.5)+0.02,"Poisson",col=2,pos=4)
~ I will take a look in the C code when I get
a chance to see if I can offer
a patch, but in the meantime wanted to alert people to
this "feature" ... (it looks like I will have to go
through dnbinom and dbinom_raw to see where the problem
is ...)
~ Ben Bolker
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2006 Jun 01
1
package installation errors
...** libs
g++ -I/home/mfa/gilp/toolchain/R/asd05546/R-2.3.1/include
-I/home/mfa/gilp/toolchain/R/asd05546/R-2.3.1/include
-I/usr/local/include -DSCYTHE_COMPILE_DIRECT -DSCYTHE_NO_RANGE -fpic
-g -O2 -c distributions.cc -o distributions.o
distributions.cc: In function `double SCYTHE::INTERNAL::dbinom_raw(const
double&, const double&, const double&, const double&)':
distributions.cc:2048: could not split insn
(insn:TI 454 450 91 (set (reg:DF 23 rxmm2 [58])
(if_then_else:DF (eq (mem:DF (reg/v/u/f:DI 3 rbx [59]) [5 S8 A64])
(reg:DF 23 rxmm2 [58]))...
2001 Feb 09
0
Re: [Rd] dnbinom(,size<1,)=0 (PR#842)
my current code for dnbinom.c has
prob = dbinom_raw(n,x+n,p,1-p,give_log);
f = ((double)n)/((double)(n+x));
return((give_log) ? log(f) + prob : f*prob);
which should work for x>=0, n>=0, 0<=p<=1.
dbinom.raw(x,n,p) is intended to work for x>=0, n>=0, 0<=p<=1,
without integer checks. When necessary (ie. for x in the dnbino...
2001 Jun 06
3
error in dbeta (PR#970)
Full_Name: Hans Peter Wolf
Version: 1.2.1
OS: hpux10.20
Submission from: (NULL) (129.70.84.25)
dbeta computes a wrong result with parameters (1.3,1)
> version
platform hppa2.0-hp-hpux10.20
arch hppa2.0
os hpux10.20
system hppa2.0, hpux10.20
status
major 1
minor 2.1
year
2006 Jan 28
1
PR#8528
On 23/02/05 I suggested that given R had included TOMS 708 to correct for t=
he=20
poor performance of pbeta, TOMS 654 should be included to fix all the pgamm=
a=20
problems. I was slightly surprised to find Morten's code had been included=
=20
instead 2 days later. I noticed but did not worry that the reference to me =
had=20
been removed.=20
The derivation of the asymptotic expansion for