similar to: The C function getQ0 returns a non-positive covariance matrix and causes errors in arima()

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