Displaying 8 results from an estimated 8 matches similar to: "The C function getQ0 returns a non-positive covariance matrix and causes errors in arima()"
2010 May 25
0
getQ0 gives different results
getQ0 function is used in arima. I am trying to recode arima function in
perl ( I have to use this function in grid. We have restrictions to install
R package in large set of machines ) The getQ0 acts differently for same
kind of input ( I hope ).
> init
[1] 18.368400 0.415422 0.415422
> arma
[1] 1 1 0 1 1 1 0
> transform.pars
[1] 1
> trarma = .Call(stats:::R_ARIMA_
transPars,
2009 Jul 13
0
Partial Correlation
Why do we get Partial correlation values greater than 1?
I have used the default function pcor.mat :--
I have manipulated the default pcor.mat function a bit so ignore tha
variables corr_type,element1_in_no,element2_in_no,P.Please ignore the
?pairwise? section and have a look at athe ?listwise ? part i.e else part.
*pcor.mat <-
2009 Jun 25
2
Error: system is computationally singular: reciprocal condition number
I get this error while computing partial correlation.
*Error in solve.default(Szz) :
system is computationally singular: reciprocal condition number =
4.90109e-18*
Why is it?Can anyone give me some idea ,how do i get rid it it?
This is the function i use for calculating partial correlation.
pcor.mat <- function(x,y,z,method="p",na.rm=T){
x <- c(x)
y <- c(y)
2009 Jun 28
1
ERROR: system is computationally singular: reciprocal condition number = 4.90109e-18
Hi All,
This is my R-version information:---
> version
_
platform i486-pc-linux-gnu
arch i486
os linux-gnu
system i486, linux-gnu
status
major 2
minor 7.1
year 2008
month 06
day 23
svn rev 45970
language R
version.string R version 2.7.1 (2008-06-23)
While calculating partial
2004 Jul 01
3
[PATCH, RFC] add APOP authentication mechanism
Hello all,
this patch add APOP authentication mechanism to dovecot 1.0-test23.
Please take a look.
Best regards.
--
Andrey Panin | Linux and UNIX system administrator
pazke at donpac.ru | PGP key: wwwkeys.pgp.net
-------------- next part --------------
diff -udrpN -X /usr/share/dontdiff -x Makefile dovecot-1.0-test23.vanilla/src/auth/Makefile.am dovecot-1.0-test23/src/auth/Makefile.am
---
2008 Jun 12
2
arima() bug
I guess this is more r-devel than r-help.
Note, I am just the messenger - I have no idea what the user is trying to model here.
arima() crashes R (segfault) with Linux R-2.7.0, Solaris R-2.6.0:
*** caught segfault ***
address 42400000, cause 'memory not mapped'
Traceback:
1: .Call(R_getQ0, phi, theta)
2: makeARIMA(trarma[[1]], trarma[[2]], Delta, kappa)
3: arima(x, c(1, 0, 1), c(1,
2005 Jun 26
2
trouble with long filename copy
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
L.S.
I'm a new member here. I've been using Samba for about 7 years now.
Usually in Win 98/2K environment, but recently also in XP environments
My server basis is either Debian or Ubuntu linux.
Problem:
when someone drags and drops a folder from one location to another
on a windows client, they get an error saying
"this location does
2017 Jun 21
6
RFC: Cleaning up the Itanium demangler
Hello all,
The itanium demangler in libcxxabi (and also, llvm/lib/Demangle) is
really slow. This is largely because the textual representation of the
symbol that is being demangled is held in a std::string, and
manipulations done during parsing are done on that string. The demangler
is always concatenating strings and inserting into the middle of
strings, which is terrible. The fact that the