Re: [R] Voronoi

Hi Andrea, The voronoi.area function of the tripack package provides the area. Is this what you're searching for ? Best, François - Original Message - From: "Andrea Toreti" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, February 07, 2008 5:47 PM Subject: [R] Voronoi > Hello

[R] Problem with strptime

Dear R-list, I'm experiencing some problems while using "strptime", which I don't understand. > str(natver) 'data.frame': 154 obs. of 8 variables: $ ID : Factor w/ 14 levels "AC","ALS","FA",..: 10 11 9 1 4 8 13 3 14 12 ... $ CdBMin : int 22 22 26 26 28 23 27 23 25 26 ... $ CdBMax :

Re: [R] [OT] vernacular names for circular diagrams

Salut Jean, I guess here in Alsace, in between France, Germany and Switzerland, we would call it a Flamenküche diagram ;-))) Best regards, François - Original Message - From: "R Heberto Ghezzo, Dr" <[EMAIL PROTECTED]> To: "Peter Dalgaard" <[EMAIL PROTECTED]>; "Jean lobry" <[EMAIL PROT

[R] Lmer output for negative binomial data

Dear R-list, May I ask for help in interpretating the output of 'lmer' (from the lme4 package) when dealing with negative binomial data ? I'm using the functions glm.nb (from the MASS package) and lmer (from the lme4) to fit respectively fixed-effects and mixed-effects generalized linear models

Re: [R] voronoi/Delaunay/Dirichlet tessellation on sphere in R or S?

Hi Jan, In case you don't know it already, the reference book for Voronoi diagrams and co. is : Spatial Tessellations: Concepts and Applications of Voronoi Diagrams by Okabe et al. (Ed. Wiley). It's a bit old now ... but it's 'a' good reference. HTH, Best regards, François - Original Message

Re: [R] hierarchical mixed model

Dear Irene, May be I misunderstand your problem, but are you not describing here a classical hierarchical model ? Do you know the book recently published, entitled 'Data Analysis Using Regression and Multilevel/Hierarchical Models', written by Gelman and Hill ? I think the section 12 can provide

Re: [R] simulation

Hi Oarabile, I'm not sure to full understand how you plan to use your function ... but it seems that do.call("rbind", ...) should address your concern. HTH, Best regards F - Original Message - From: "Oarabile Molaodi" <[EMAIL PROTECTED]> To: Sent: Tuesday, October 16, 2007 11:47 AM Subje

Re: [R] Visualize cox proportional hazards

Here you go http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=114 Also have a look @ http://www.bmj.com/cgi/reprint/322/7300/1479.pdf HTH Francois - Original Message - From: "Armin Goralczyk" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: Sent: Wednesday, October 10, 2007