[R] Singularity of lda function in MASS package

LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] MASS_7.2-45 > -- Mizanur Khondoker Division of Pathway Medicine (DPM) The University of Edinburgh Medical School The Chancellor's Building 49 Little Fr

[R] How to checkpoint-restart R jobs in batch mode?

experience or idea of doing so? Any help would be greatly appreciated. -- Mizanur Khondoker Division of Pathway Medicine (DPM) The University of Edinburgh Medical School The Chancellor's Building 49 Little France Crescent Edinburgh EH16 4SB United Kingdom Tel: +44 (0) 131 242 6287 Fax: +44 (0) 13

Re: [R] [SPAM] - constructing arbitrary (positive definite) covariance matrix - Found word(s) list error in the Text body

gt; covariance matrix - Found word(s) list error in the Text body >> To: [EMAIL PROTECTED] >> Cc: "Mizanur Khondoker" <[EMAIL PROTECTED]>, r-help@r-project.org >> Received: Friday, 27 June, 2008, 3:15 AM >> To make David's approach a little more concrete: &g

[R] constructing arbitrary (positive definite) covariance matrix

r= -0.6) > mu<-1:3 > mvrnorm(5, mu=mu, Sigma=Sigma) Error in mvrnorm(5, mu = mu, Sigma = Sigma) : 'Sigma' is not positive definite -- Mizanur Khondoker Division of Pathway Medicine (DPM) The University of Edinburgh Medical School The Chancellor's Building 49 Little Fra