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Thanks a lot Petr!! It worked! -- View this message in context: http://r.789695.n4.nabble.com/count-of-factors-tp3224791p3224924.html Sent from the R help mailing list archive at Nabble.com.

Exactly!! Thanks a lot Petr. It worked! Thansk to you as well Ivan! -- View this message in context: http://r.789695.n4.nabble.com/reshape-data-adding-rows-to-dataframe-tp3253640p3253793.html Sent from the R help mailing list archive...

Thanks Henrique! It solves the problem of having the column "N" with unreal number of individuals since N=1 with Petr's example: expand <- transform(dat[rep(1:nrow(dat), times=dat$N), ] ,N=1) rownames(expand) <- NULL expand > expand...

Hi, We are analizing the relationship between the abundance of groupers in line transects and some variables. We are using the quasipoisson distribution. Do we need to include the length of the transects as an offset if they all have...

Hi Ivan, Thanks for your reply. This is what I want to do: Imagine my dataset looks like this: Species N Size Coris julis 1 8 Coris julis 3 10 D.vulgaris 2 12 I have 1 C.julis of...

Hi, we are modelling dusky grouper distribution using underwater visual census. Our response variable is the abundance of groupers but we want to see differences in habitat related to maturity because dusky groupers use different habitats when they're juveniles...

Hello everyone, I have a data set like this: > head( fish_transect) ID_TRANSECT ID_PROJECT DE_ZONE DE_LOCALITY DE_SECTOR MES 1 42 MB Tarragona Creixell Control I 9 2 42 MB Tarragona Creixell Control I 9 3...

Hello everyone, I have a data set like this: > head( fish_transect) ID_TRANSECT ID_PROJECT DE_ZONE DE_LOCALITY DE_SECTOR MES 1 42 MB Tarragona Creixell Control I 9 2 42 MB Tarragona Creixell Control I 9 3...

Hi Joris, We're using mgcv. We have data on abundance of groupers on line transects that have the same legth. My coworker has selected a bunch of variables and he has calculated them in terms of total area in...

Hi, I am using this loop par(mfrow=c(3,3)) annos<-c(2001:2007,2009) for (i in annos) { t<-subset(masia,YEAR==i) t$FAMILIA<-drop.levels(t$FAMILIA) pie(table(t$FAMILIA),main=i) } To make piecharts...

Hi, Thanks for the inputs. I talked to my coworker, who has been the one doing the analysis. Perhaps I wasn't making myself clear about the ?differences in spatial scales?. Here is what he says: "The truth is that...