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Hello, I need help to understand my error in this code... I would like to make a direct sampler... thanks Celine p<-matrix(c(1,2,3,2,1,4),3,2,byrow=T) p<-p/sum(p) ky<-ncol...

Sorry for the replicates, but I am not sure that my previous message was sent. Hi members, I would like to superpose a raster stack and some contour lines (several pannels). It is possible with rasterVis : levelplot()+contourplot() But I...

I wish to use the function Dev2bitmap under R to record my graphs. If i write this term, dev2bitmap(".../histo",type="jpeg",height=7,width=7) my program execute a big number of times and i can not stop it...

Hi I need some help with the function mask I have a polygon and I want to extract data for all the world except for the polygon I write this code but it doesn't work, do you have any...

Thanks for your help, I still have a little problem with this function because I don't have the same number of line in my two datarame so when I try to apply the dataframe function, I obtain this response...

Dear all, I would like to fit a model to estimate between sex genetic correlations for 3 traits (3 same traits expressed both in males and females) using MCMCglmm. My problem is I don't understand how I can manage...

I have a similar problem I have a dataframe : CELLCD AreaProtected 8928 52.39389 8928 41.91511 8929 21.21975 8929 63.65925 8930 26.08547 8930 14.04602 I wouldlike to sum the AreaProtected if it is the same...

Dear all, we are trying to run a meta-analysis on factors affecting heritability in MCMCglmm. As it is a ratio of 2 variances, the values are bounded between one and zero, but can not be interpreted as Success/NbTrials...

Dear all, I would like to run an animal model in MCMCglmm with 3 traits, 2 male traits and one female trait, but I do not know how to fix the covariances between sexes for Vpe and Vr to 0...

Dear all, At present, i develop a method of spatial interpolation of the precipitation on the region "Bourgogne". This method names AURELHY. It requires a linear regression . A selection of variables for this regression should be made : we use the...

Dear all, I am trying to run a zero inflated model with MCMCglmm as the number of days of parades in the birds is overdispersed. I used this code: priorA <- list(R=list(V=diag(2),n=2,fix=2...

Dear all, I would like to create a graphics menu. There is a function "menu" which presents the user with a menu of choices labelled from 1 to the number of choices(in the package base). But it's an...

I guess my problem is simple for most of you but I am new with R and I need some help, I have a dataframe : CELLCD AreaProtected 8928 52.39389 8928 41.91511 8929 21.21975 8929 63.65925 8930...

Dear all, I wish use the "est.variogram" function under R. My question concerns the determination of number of lags. To make this calculation, i determined the biggest and the smallest distance between 2 pairs of points. I built the...

Hello I'm modifying shape file in R. When exporting with writeOGR or writeSpatialShape, the data frame has not the good format, too many digits for numeric. I tried format(layer at data[,4],digits=1) but it didn't...

Dear R Help list, I'm facing a problem with "tk_choose.dir", I try to find an explanation and a solution. I use :rm(list=ls(all=TRUE)) datawd<-"/mnt/3-Biot/data_input/" setwd(datawd) files<-tk_choose...

Hi, I am working with a SpatialPolygonsDataFrame of many islands. There are a lot of polygons (islands) composing my SpatialPolygonsDataFrame. I want to extract the elevation of each island. I need to separate the different polygons (like dissolve function in...

Hello everybody ! I try to obtain in R eigenvectors and canonical analysis on MANOVA results, but I don't find how to process? In particular, I would be interesting to obtain "standardized canonical coefficients" of the canonical variates. There analysis...

Hello everybody ! I try to obtain in R eigenvectors and canonical analysis on MANOVA results, but I don't find how to process? In particular, I would be interesting to obtain "standardized canonical coefficients" of the canonical variates. There analysis...

Dear all, I would like to fit a random regression using MCMCglmm. The problem is I don't manage to include heterogeneous residual variance (when I use just one residual variance the model is running). I have created a factor...