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11 results for “from:Edmond Ng”

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Edmond.Ng at lshtm.ac.uk · Feb 15, 2010 · r-help

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Edmond.Ng at lshtm.ac.uk · Feb 15, 2010 · r-help

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get current window (device) size
Edmond.Ng at lshtm.ac.uk · Feb 15, 2010 · r-help

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Snowfall: "cannont open connection " problem
Edmond.Ng at lshtm.ac.uk · Jun 24, 2010 · r-help

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allowing individual level correlations to differ by cluster in lme in R
Edmond.Ng at lshtm.ac.uk · Jun 2, 2011 · r-help

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order of approximation used in glmmPQL
Edmond Ng · Oct 21, 2005 · r-help

Dear all, Could anyone let me know what order of approximation (first, second or higher order) is used in glmmPQL in the MASS library please? I have read the section on this wrapper command in Venables and Ripley but am...

supplying the Hessian to "nlm"
Edmond Ng · May 28, 2003 · r-help

Dear all, I am trying to minimize a function with 3 parameters using nlm. I have worked out the 2nd derivatives (incl the cross-product terms) and would like to supply them to nlm for evaluation. What I am not...

how to show a section of a matrix neatly (or row by row) that satisfies some condition
Edmond Ng · Mar 24, 2003 · r-help

Hi all, I want to show the rows of a matrix (100x3) of which some of its elements satisfy a certain condition. In particular, how can I display the 2 rows of my matrix one after the other and not...

reading in tab delimited data in a loop
Edmond Ng · Mar 5, 2003 · r-help

Dear all, I need to read in 4 sets of tab delimited data in a loop. The 4 data sets are called "simu1.dat", "simu2.dat" and so on. I know what I need on the righthand side of the...

odd behaviour of 'while'?
Edmond Ng · Mar 14, 2003 · r-help

Hi all, I have written a program which performs some data simulation, model fitting (to the simulated data) and then it will save the parameter estimates from each loop into a matrix for later use. Because convergence will not be...

Snowfall: "cannont open connection " problem (repost in plain text)
Edmond.Ng at lshtm.ac.uk · Jun 24, 2010 · r-help

<< Apologies for posting my question in HTML earlier. Reposted in plain text now.>> Dear R-listers, I have been using Snowfall (version 1.84) for parallel computing on a quad-PC running Windows 7 for a month or so without...

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