From: F Z <gerifalte28_at_hotmail.com>

Date: Thu 08 Jul 2004 - 01:40:39 EST

R-help@stat.math.ethz.ch mailing list

https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Jul 08 01:47:49 2004

Date: Thu 08 Jul 2004 - 01:40:39 EST

Thanks to Andy Liaw, James Holtman and Uwe Ligges; I downloaded and looked
at the source and found what I need!!

Francisco

*>From: Uwe Ligges <ligges@statistik.uni-dortmund.de>
**>To: F Z <gerifalte28@hotmail.com>
**>CC: andy_liaw@merck.com, R-help@stat.math.ethz.ch
*

>Subject: Re: [R] Code density functions

*>Date: Wed, 07 Jul 2004 07:51:35 +0200
**>
**>F Z wrote:
**>>Dear Andy
**>>
**>>Thanks for your reply. I don't seem to find the file that you suggested.
**>>I tried:
**>>
**>>>file.show('C:/Program Files/R/rw1091/src/nmath/dnorm.c.')
**>
**>You have installed a binary distribution.
**>You need to get the source tarball (directly accessible via the main CRAN
**>page) that includes the file.
**>
**>Uwe Ligges
**>
**>
**>
**>>NULL
**>>Warning message:
**>>file.show(): file C:/Program Files/R/rw1091/src/nmath/dnorm.c. does not
**>>exist
**>>
**>>Then I looked at the directory and tried a file with similar name:
**>>
**>>>file.show('C:/Program Files/R/rw1091/src/include/Rmath.h')
**>>
**>>
**>>But this file does not show the actual code used to calculate the
**>>densities, only the declarations of the procedures.
**>>
**>>What am I doing wrong?
**>>
**>>Thanks again!
**>>
**>>Francisco Zagmutt :)
**>>
**>>
**>>>From: "Liaw, Andy" <andy_liaw@merck.com>
**>>>To: "'F Z'" <gerifalte28@hotmail.com>,R-help@stat.math.ethz.ch
**>>>Subject: RE: [R] Code density functions
**>>>Date: Tue, 6 Jul 2004 18:35:24 -0400
**>>>
**>>>Dear <insert your name here>:
**>>>
**>>>You need to look at the C-level source codes, in R-1.9.1/src/nmath/d*.c.
**>>>
**>>>Andy
**>>>
**>>> > From: F Z
**>>> >
**>>> > Hello
**>>> >
**>>> > I would like to see the algorithm that R uses to generate
**>>> > density functions
**>>> > for several distributions (i.e. Normal,Weibull, etc). I tried:
**>>> >
**>>> > >dnorm
**>>> > function (x, mean = 0, sd = 1, log = FALSE)
**>>> > .Internal(dnorm(x, mean, sd, log))
**>>> > <environment: namespace:stats>
**>>> >
**>>> > How can I see the code used for densities?
**>>> >
**>>> > Thanks!
**>>>
**>>>
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**>>
**>>
**>>______________________________________________
**>>R-help@stat.math.ethz.ch mailing list
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**>
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https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Jul 08 01:47:49 2004

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