search for: dispers

Hi all I want to assign a constant to a different column for each row eg: m[1,2] <- 0; m[2,3] <- 0; m[3,1] <- 0; m[4,2] <- 0; m[5,1] <- 0; ... etc... i've tried apply/tapply with no luck and also the following coefs <- rtt.abs[,5:8]; coefs.i <- coefs[] == 1; coefs[coefs.i] <- 0; wich results in "matrix subscripts not allowed in replacement"

> -----Original Message----- > From: r-help-bounces at stat.math.ethz.ch > [mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of Caio Lucidius > Naberezny Azevedo > Sent: 01 September 2005 12:09 > To: Help mailing list - R > Subject: [R] Multivariate Skew Normal distribution > > > Hi all, > > Could anyone tell me if there is any package (or function)

Hi , I'm disperated I've recently installed FreeBSD 4.8 ,and all at the first look was ok , this was only a try in a small partition , and now I have decided to install it in a bigger partition , so I've downloaded the 5.1 ISO (to give it a try too) and I've tried to BURN it with "burncd" . Now, I've noticed that in the DEV directory there are the devices

hello list, i'd appreciate help regarding formula expression in adonis(), package vegan. i'm interested in the effect of an impact on species composition and if this effect is the same for different sites. i have an impact survey with plot pairs, one plot with impact the other with similar ecolgical conditions but without impact, which is the control (factor1: impact). two different

...arquardt): B=-19,56 and T=2,37. Am I doing something wrong in R (or at least non-comparable "methodologies")? Please, feel free to comment/suggest. Regards, Eduardo Esteves # Dados CO2<-c(141,172,181,227,309,414,641,936) Prop<-c(0.25,0.34,0.34,0.68,0.85,0.99,0.98,0.99) # Diagrama dispersão plot(Prop~CO2, las=1, xlim=c(0,1000),ylim=c(0,1),pch=16,cex=1.5, xlab="CO2 (ppm)", ylab="Proporção de respostas correctas") # Estimaçao (Método Mínimos Quadrados) ajuste<-nls(Prop~(1/3+exp(B*(T-log(CO2))))/(1+exp(B*(T-log(CO2)))), data=data.frame(CO2=CO2,Prop=Prop),sta...