similar to: Apply a function according to factor levels.

Dear all, I am trying to use R to fit mixed models. Take the following example, where ind is a random effect and sample is fixed. I wanted to fit Model 1: values = ind + sample Model 2: values =ind * sample Model 3: values=ind(sample) + sample Tried to use the below for mod1, but it did not work. Can anyone give some help on this. Thanks so much. mod1 <- lme(values ~ sample +

Hi R community I have a question. I'll explain my situation. I have to build a climate model to obtain monthly and annual temperature from 2004 to 2008 from a specif area in Almeria (Spain). To build this climate model, I will use Multiple regression. My dependant variable will be monthly and annual temperature and independant variables will be Latitute, Longitude and Altitude and I will work

Hello, I'm trying to take the correlation of two distance matrices and get the r2 value ex) Ndisc PS1 Ntet Nsito NcB NcA PS3 NcC NiB NiA PS1 0.08945 Ntet 0.08601 0.02020 Nsito 0.09361 0.02780 0.02260

Full_Name: Tao Shi Version: 1.7.0 OS: Windows XP Professional Submission from: (NULL) (149.142.163.65) > x [,1] [,2] [1,] 149 151 [2,] 1 8 > c2x<-chisq.test(x, simulate.p.value=T, B=100000)$p.value > for(i in (1:20)){c2x<-c(c2x,chisq.test(x, simulate.p.value=T,B=100000)$p.value)} > c2tx<-chisq.test(t(x), simulate.p.value=T, B=100000)$p.value > for(i in

Working on modeling a wild animal population. Two data vectors: the herd count from year to year (estimated by a sampling procedure), and the number of animals killed by hunters. Task is to find the natural growth rate of the herd (A simplification, but preserves the essentials.) My question is whether the R procedure lm() is an appropriate tool to estimate the growth rate. year

Hi all, I have installed FAX app as described in several mails. When a fax call is received, I get the following in the * console: -- Starting simple switch on 'Zap/1-1' -- Executing Answer("Zap/1-1", "") in new stack -- Executing Ringing("Zap/1-1", "") in new stack -- Executing Wait("Zap/1-1", "2") in new stack

Hi all, I attached a driver for MiniBox openUPS device ( http://www.mini-box.com/OpenUPS) and a dump of the hid usages. I had the possibility to make a few adjustments to the device firmware for HID usages, and although I haven't managed to produce a good structure many issues from previous firmware were at least fixed and new information added. ATM the driver only shows pertaining