[R] A subject related question

2010-10-16 Thread Jonathan Beokhokhei
Dear friends, please allow me a naive subject oriented question at this moment. I was wondering whether VCV matrix for some multivariate normal distribution can be PSD (which I always thought must be PD). I came across that point as I was working on some sample distribution of some statistic

Re: [R] A subject related question

2010-10-16 Thread Duncan Murdoch
On 16/10/2010 2:17 PM, Jonathan Beokhokhei wrote: Dear friends, please allow me a naive subject oriented question at this moment. I was wondering whether VCV matrix for some multivariate normal distribution can be PSD (which I always thought must be PD). I came across that point as I was

Re: [R] A subject related question

2010-10-16 Thread Bill.Venables
by the multivariate central limit theorem. Bill Venables. -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Jonathan Beokhokhei Sent: Sunday, 17 October 2010 4:17 AM To: r-help@r-project.org Subject: [R] A subject related question Dear friends