Displaying 20 results from an estimated 1000 matches similar to: "Replace isnan and lgamma in Fortran subroutine in R package"
2009 Apr 22
2
integrate lgamma from 0 to Inf
Dear R users,
i try to integrate lgamma from 0 to Inf. But here i get the message "roundoff error is detected in the extrapolation table", if i use 1.0e120 instead of Inf the computation works, but this is against the suggestion of integrates help information to use Inf explicitly. Using stirlings approximation doesnt bring the solution too.
## Stirlings approximation
lgammaApprox
1998 Sep 10
2
R-beta: trouble compiling 0.62.3 on SunOS 4.1.4: lgamma conflicts
I've recently tried to get 0.62.3 up on our Suns (4.1.4, using gcc; I'm
also having trouble with a Solaris 2.6 compile but I haven't given up hope
on that one yet) -- the last compile I did was 0.61.1, which worked
smoothly.
 
 Running
 ./configure --prefix=/usr/local/apps/R/R-0.62.3  [--with-g77]
  (tried both with and without g77, eventually get to the same place),
I get a conflict
2002 Dec 22
1
lgamma(-0.8)=?
Dear R users:
I wonder anyone is aware of such a thing from lgamma()
> lgamma(-0.8)
[1] 1.747207
I thought it should be NA as in S-PLUS. Both R-1.3.1 and R-1.5.1
report this result. I don't have the latest R-1.6.1 so I don't
know whether this is corrected or not.
Happy holidays,
Paul.
2000 Oct 04
2
gamma and lgamma functions (PR#684)
The following seems very strange:
> lgamma(-0.04)
[1] 3.243307
> gamma(-0.04)
[1] -25.61830
  Jim
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2004 Jul 16
2
[LLVMdev] IsNAN.cpp:23:3: #error "Don't know how to get isnan()"
Hi
>From: Chris Lattner <sabre at nondot.org>
>Date: Thu, 15 Jul 2004 17:43:27 -0500 (CDT)
>Ah, suddenly everything makes sense.  If you're interested in LLVM on the
>windows platform, *please* get CVS.
Last night I've got the latest version of LLVM from CVS and now porting LLVM 
to Interix from this version on.
I got this error:
---------------------
gmake[1]:
2004 Jul 18
1
[LLVMdev] IsNAN.cpp:23:3: #error "Don't know how to get isnan()"
Hi Brian
Here's the config.log (I'm not posting it on the dev-list).
The automatic gcc macro for Interix is __INTERIX if this is to any help.
/Henrik
>From: "Brian R. Gaeke" <gaeke at uiuc.edu>
>Reply-To: LLVM Developers Mailing List <llvmdev at cs.uiuc.edu>
>To: LLVM Developers Mailing List <llvmdev at cs.uiuc.edu>
>Subject: Re: [LLVMdev]
2005 Jan 04
2
ISNAN() broken? in ver 2.x on MacOS X
I have a problem building an extension using ISNAN() on R version 2.0.x.
In R 1.9.1 Arith.h and Rmath.h contained code like
#ifdef IEEE_754
# define ISNAN(x) (isnan(x)!=0)
#else
# define ISNAN(x)      R_IsNaNorNA(x)
#endif
#define R_FINITE(x)    R_finite(x)
int R_IsNaNorNA(double);
int R_finite(double);
which works.
R 2.0.x has
# define ISNAN(x) (isnan(x)!=0)
unconditionally.
This breaks
2005 Jan 04
2
ISNAN() broken? in ver 2.x on MacOS X
I have a problem building an extension using ISNAN() on R version 2.0.x.
In R 1.9.1 Arith.h and Rmath.h contained code like
#ifdef IEEE_754
# define ISNAN(x) (isnan(x)!=0)
#else
# define ISNAN(x)      R_IsNaNorNA(x)
#endif
#define R_FINITE(x)    R_finite(x)
int R_IsNaNorNA(double);
int R_finite(double);
which works.
R 2.0.x has
# define ISNAN(x) (isnan(x)!=0)
unconditionally.
This breaks
2004 Oct 19
2
[LLVMdev] Visual C Patches for IsNAN.cpp and IsInf.cpp
I don't know if Paolo submitted his patches for these files, but they 
are not in the CVS -- I've chosen a slightly different strategy, adding 
a case that checks if the compiler is MSVC instead of adding 
HAVE_FINITE_IN_FLOAT_H and HAVE_ISNAN_IN_FLOAT_H to the config.h file.
I don't know which is the best approach, but this is the minimal patch 
to make it work...
m.
--------------
2005 Jan 05
1
Standalone Mathlib, C++ and ISNAN()
In the hope of some meaningful response and ignoring the risk of 
further abuse, let me try to clarify the issue here.
I have re-read the 'Writing R Extensions' manual.  It seems to me that 
it clearly says R API functions can be called from from C++ programs, 
and the API  includes the special values ISNAN() and R_FINITE() and the 
missing test ISNA().
R_FINITE is no problem.  It is
2004 May 24
1
Cannot call R's ISNAN() from a C code in >1.7 versions.
Dear R users,
Have you experienced any difficulty in calling R's ISNAN() from a C
code? I have C codes including ISNAN() calls and they worked well until
I upgraded my R from 1.7 to later versions. When I tried to compile the
codes in the version 1.8 and 1.9, I got error messages like this:
   test.obj : error LNK2001: unresolved external symbol _isnan
   .\testR.dll : fatal error LNK1120: 1
2007 Oct 26
5
help
hello,
please can anyone help me out. Am a new user of R
program. Am having problem
with this code below, not getting the expected
results.
1. Each m, the cumulative sum should be 1.000 but the
2nd and 3rd m returned 2.000 and 3.000
instead of 1.000.
2.  to get the LCL(m) and UCL(m) for each m base on
these instructions
        if out.cum > 0.025 then LCL(m)= y-1
        if out.cum >0.975
2011 Aug 17
1
multinomRob - error message
Hi,
I would like to use the multinomRob function to test election results.  
However, depending on which independent variables I include and how  
many categories I have in the dependent variable, the model cannot be  
estimated.
My data look like this (there are 68 observations):
> head(database)
    RESTE09 GAUCHE09 PDC09 PLR09 UDC09 MCG09    RESTE05  GAUCHE05      PDC05
D1    1455    
2007 Oct 29
2
help please
hello,
please can anyone help me out. Am a new user of R
program. Am having problem
with this code below, not getting the expected
results.
 Each m, the cumulative sum should be 1.000 but the
2nd and 3rd m returned 2.000 and 3.000
instead of 1.000.
thanks
Aruike
pp=function(x,n,M){z=1.0;a=2.3071430;b=7.266064;H=3
     out.h=c()   
     out.y=c()
     out.m=c()
     out.prob=c()
     
2005 Jul 03
2
over/under flow
I am porting some FORTRAN to R in which an Inf triggers an if().  The
trigger is infinite on exp(lgamma(OVER)).  What is the canonical R 
style of determining OVER when exp(OVER)== Inf?  The code structure 
that I am
porting is best left intact--so I need to query R somehow to the value
of OVER that causes exp(lgamma(OVER)) to equal Inf.
On my system,
exp(lgamma(171)) is about first to equal Inf.
2006 Jul 22
1
ifelse command
Dear:
   I try to revise the maximum likelihood function below using something constrains. But it seems something wrong with it.  Becasue R would not allow me to edit the function like this. It is very appreciate if you can help.
  
function (parameters,y,x1,x2)
{
p<-parameters[1]
alpha1<-parameters[2]
beta1<-parameters[3)]
delta1<-parameters[4]
alpha2<-parameters[5]
2014 Mar 04
1
How to import S3 method
Dear Helpers,
I wanted to import an S3 method from package glmnet to my own R package. Specifically, I tried the following:
plot.glmreg=function(x, xvar=c("norm","lambda","dev"),label=FALSE,shade=TRUE, ...) UseMethod("glmnet")
I got the following message when installing my package:
Error : object 'plot.glmnet' is not exported by
2008 Apr 18
3
help me to debug this part of code?
I am trying to solve the integration equation, for different values of K from
4 to 25, the integration is with respect to u,
Here is the equation:    gamma(k/2) / ( sqrt(k-1)*gamma((k-1)/2) ) *
integrate(f= (1+u^2/k-1)^(-k/2), lower=0, upper= sqrt(a^2*k/(k+1-a^2)) ) = 
the similar expression as te left hand except k becomes k+1
my code is below, I don't know why R keep telling me the syntax
2004 Jun 26
1
S4 group "Math", "getGroupMembers", "genericForPrimitive"
Hi,
I found the following on Windows 2000/NT
R Version 1.9.1  (2004-06-21) (also Version 1.9.0):
The S4 group "Math" doesn't work as documented; i.e., "log", "log10",
"gamma" and "lgamma" are included
in the documentation but don't work. See example code below.
Moreover, what about 'genericForPrimitive' which is used
in
2006 Jul 22
1
Why the contrain does not work for selecting a particular range of data?
Dear:
    Continuing the issue of 'ifelse'! I selecting the data whose 'x2'=1 for maximizing likelihood. I used two way to do this but the results are different.
   
    1.Way one I use the data for x2=1 and run the program. It works for me. Tthe program is described as below:
function (parameters,y1,x11)
{
p<-parameters[1]
alpha1<-parameters[2]
beta1<-parameters[3]