Since you are on Linux, I suggest that you use valgrind:
http://www.valgrind.org/
Download it, build it, then do:
R -d valgrind
and run your function as usual.
It is hard to emphasize enough how useful this is for tracking
down problems in C code. When developing on Windows,
it would often be
Has anybody implemented or tried to implement a stochastic volatility model
using the Kalman filter following a series of papers by Harvey, Ruiz and
Shepard?
This is a sophisticated approach for estimating an important class of
models, so I am surprised that no implementation exists, is this
Hi
I need an advise if any one can help me.
i have mass of data in 2 array A and B:
A = 0 1 0 0 1 1 0 0
B = 0 0 0 1 0 1 1 1
and i have 3 rules to merge them into 3rd array C:
if A[i] + B[i] == 0 then C[i]=0
if A[i] + B[i] == 1 then C[i]=1
if A[i] + B[i] == 2 then C[i]=2
it looks easy but with
Hi!!!
I have a problem...
I have C functions that I wan execute from R. I'm using WindowsXP. I've
compiled with gcc and then execute RCMD SHLIB qnorm.c.
In this moment I've got qnorm.dll.
In R console execute
dyn.load(c:\\r\\rw2011\\src\\gnuwin32\\qnorm.dll)
and message error don't appears.
Then I
On 01-Nov-05 Erez wrote:
Hi
I need an advise if any one can help me.
i have mass of data in 2 array A and B:
A = 0 1 0 0 1 1 0 0
B = 0 0 0 1 0 1 1 1
and i have 3 rules to merge them into 3rd array C:
if A[i] + B[i] == 0 then C[i]=0
if A[i] + B[i] == 1 then C[i]=1
if A[i] + B[i] == 2
Dear Erez,
How about C - A + B ?
Regards,
John
John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox
-Original Message-
From: [EMAIL
On Tue, 2005-11-01 at 12:39 +0200, Erez wrote:
Hi
I need an advise if any one can help me.
i have mass of data in 2 array A and B:
A = 0 1 0 0 1 1 0 0
B = 0 0 0 1 0 1 1 1
and i have 3 rules to merge them into 3rd array C:
if A[i] + B[i] == 0 then C[i]=0
if A[i] + B[i] == 1 then C[i]=1
On 05-Nov-05 Marc Schwartz wrote:
On Tue, 2005-11-01 at 12:39 +0200, Erez wrote:
Hi
I need an advise if any one can help me.
i have mass of data in 2 array A and B:
A = 0 1 0 0 1 1 0 0
B = 0 0 0 1 0 1 1 1
and i have 3 rules to merge them into 3rd array C:
if A[i] + B[i] == 0 then C[i]=0
On Sat, 2005-11-05 at 15:15 +, Ted Harding wrote:
On 05-Nov-05 Marc Schwartz wrote:
On Tue, 2005-11-01 at 12:39 +0200, Erez wrote:
Hi
I need an advise if any one can help me.
i have mass of data in 2 array A and B:
A = 0 1 0 0 1 1 0 0
B = 0 0 0 1 0 1 1 1
and i have 3 rules
Dear listers,
I am trying to fit a nlme model with age and pds as reals, and
zone a factor with two levels Annaba and Boumalek . The best
model found is the following:
modm3
Nonlinear mixed-effects model fit by maximum likelihood
Model: pds ~ Asym/(1 + exp((xmid - age)/scal))
Data:
Hi,
I have a data frame named questions that I use to get a subset and
then a table:
failcondonly - subset(questions, errorreason==condition)
failcondtab - table(failcondonly$type, failcondonly$qid, exclude=c(ORGA,
skipped))
The failcondtab looks like this:
6 11 12 13 14 15 17 26 30
Marc == Marc Schwartz [EMAIL PROTECTED]
on Sat, 05 Nov 2005 09:20:40 -0600 writes:
Marc On Sat, 2005-11-05 at 15:15 +, Ted Harding wrote:
On 05-Nov-05 Marc Schwartz wrote: On Tue, 2005-11-01 at
12:39 +0200, Erez wrote: Hi
[I did not see a reply to this. The date
On Sat, 2005-11-05 at 17:52 +0100, Martin Maechler wrote:
Marc == Marc Schwartz [EMAIL PROTECTED]
on Sat, 05 Nov 2005 09:20:40 -0600 writes:
Marc On Sat, 2005-11-05 at 15:15 +, Ted Harding wrote:
On 05-Nov-05 Marc Schwartz wrote: On Tue, 2005-11-01 at
12:39 +0200,
On Sat, 2005-11-05 at 18:04 +0100, Claus Atzenbeck wrote:
Hi,
I have a data frame named questions that I use to get a subset and
then a table:
failcondonly - subset(questions, errorreason==condition)
failcondtab - table(failcondonly$type, failcondonly$qid, exclude=c(ORGA,
skipped))
On Sat, 2005-11-05 at 11:44 -0600, Marc Schwartz wrote:
On Sat, 2005-11-05 at 18:04 +0100, Claus Atzenbeck wrote:
Hi,
I have a data frame named questions that I use to get a subset and
then a table:
failcondonly - subset(questions, errorreason==condition)
failcondtab -
Greetings,
This is potentially a very simple question that arose as I am trying my best
to learn how to compile dll's using SHLIB, and also finally how to compile
packages from source (after being a windows user for 2 years it is about
time).
The question: I am trying to figure out why on my
Hi,
Is there any R or S-PLUS function/package that performs a goodness-of-fit test
that takes censored (lifetime) data into account? I would like to test the
goodness-of-fit of a fitted Cure model.
Thanks,
Patrick.
-
Marc == Marc Schwartz [EMAIL PROTECTED]
on Sat, 05 Nov 2005 11:40:58 -0600 writes:
Marc On Sat, 2005-11-05 at 17:52 +0100, Martin Maechler wrote:
Marc Agreed. There were a couple of other delayed posts
Marc that came through as well.
Marc I
This is a difficult problem. After several false starts with
RSiteSearch, I finally got 15 hits from 'RSiteSearch(predict lme with
confidence)', including the following 3 which looked to me like they
might help with your question:
Dear Sir/Madam,
If I have matrics as follows:
a - c(1,1,0,0)
b - c(4,4,0,0)
c - c(3,5,5,6)
How can I use R code to solve the equation ax^2+bx+c=0.
thanks!
yuying shi
[[alternative HTML version deleted]]
__
R-help@stat.math.ethz.ch mailing
RSiteSearch(Singularity in backsolve) produced 33 hits, the second
of which was the following:
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/62691.html
This reply from Peter Dalgaard dates 8 Oct. 2005 asks, Which version
of R and NLME? R 2.2.0 ships with a version where
Dear Sir/Madam,
If I have matrics as follows:
a - c(1,1,0,0)
b - c(4,4,0,0)
c - c(3,5,5,6)
How can I use R code to solve the equation ax^2+bx+c=0.
thanks!
yuying shi
[[alternative HTML version deleted]]
__
R-help@stat.math.ethz.ch mailing
On Sat, 5 Nov 2005, ¨Tariq Khan wrote:
Greetings,
This is potentially a very simple question that arose as I am trying my best
to learn how to compile dll's using SHLIB, and also finally how to compile
packages from source (after being a windows user for 2 years it is about
time).
The
On 05-Nov-05 Yuying Shi wrote:
Dear Sir/Madam,
If I have matrics as follows:
a - c(1,1,0,0)
b - c(4,4,0,0)
c - c(3,5,5,6)
How can I use R code to solve the equation ax^2+bx+c=0.
thanks!
yuying shi
I'm not sure what your question really should be, but taking
it at face value and not
tom == tom wright [EMAIL PROTECTED]
on Fri, 04 Nov 2005 09:37:24 -0500 writes:
tom This code consistenly segfaults for me. Can someone
tom please take a look and tell me if the problem is due to
tom something I am doing or is there a problems with the
tom dwt (idwt)
I am using/trying to use R 2.2.0.
I have created a package of ``supplementary'' time series functions
for use by my students in a time series course. The package involves
only raw R code; no dynamic loading to complicate matters. I need to
install this package in a location on a local area
On Sat, 2005-11-05 at 17:35 -0400, Rolf Turner wrote:
I am using/trying to use R 2.2.0.
I have created a package of ``supplementary'' time series functions
for use by my students in a time series course. The package involves
only raw R code; no dynamic loading to complicate matters. I need
Are you familiar with intervals and lme in the nlme package?
These are documented in Pinheiro and Bates (2000) Mixed-Effects Models
in S and S-Plus (Springer). I'm not familiar with the algorithm, but if
it's different from Satterthwaite's method, I suspect that Prof. Bates
had a
Have you solved this problem yet? If no, and if you would still like
a solution, I suggest you try to develop a much simpler example that
still produces results like this that you don't understand. Either use
data that are already in a standard R library or are a Monte Carlo that
a
If you have not yet solved this problem and are still interested in a
solution, I have three suggestions:
1. Try to simplify the problem as much as possible. If this does
not lead you to a solution to your problem, when you get an example that
is completely self-contained
Dear Sir/Madam,
My purpose is to write an R function to solve the quadratic equation
ax2+bx+c=0.
The input should be an array of a, b, and c from a data set
a b c
1 4 3
1 4 5
0 2 5
0 0 6
The output with the possibility of complex roots and one root or no root
should look like the following.
A
Hello guys,
I am wondering the default way of transferring arguments in R. Is it by
value or by ref in default case, or could that be changed explicitly?
Cheers,
Xiaofan
---
Xiaofan Li
Department of Applied Mathematics and Theoretical Physics
University of Cambridge
Dear colleague,
Is it able in R to manipulate data tables as in SQL-based databases?
Is there any good method in R to locate a special subset of data rows, which
satisfy a certain expression of restrictions (e.g. dataTable$peakValue
3.0)? Then if located, is it able for manipulations, for
Xiaofan Li wrote:
Hello guys,
I am wondering the default way of transferring arguments in R. Is it by
value or by ref in default case, or could that be changed explicitly?
R passes by value. It's worth reading the language definition manual to
find out about the subtleties (e.g. lazy
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