similar to: relative euclidean distance

Dear all, I was looking for methods in R that allow assessing the number of significant principal coordinates. Unfortunatly I was not very successful. I expanded my search to the web and Current Contents, however, the information I found is very limited. Therefore, I tried to write code for doing a randomization. I would highly appriciate if somebody could comment on the following approach.

Hi: I do not know why the function decostand is not found in my vegan library, I have downloaded the package recently, and it seems to work well..Do you have any suggestion? Rosa. [[alternative HTML version deleted]]

I have installed R on windows 7 machine. In the install packages I can't find BiodiversityR package. I was wondering if I can get some help with the installation process. Thanks. -- View this message in context: http://r.789695.n4.nabble.com/installation-of-BiodiversityR-package-tp3816807p3816807.html Sent from the R help mailing list archive at Nabble.com.

Hello, I am relatively new to R and I am working through the code that is provided in the book Numerical Ecology with R and I have run across an error message that I can't seem to figure out. I am using the vegan, ade4, gclus and cluster packages. The code is as follows: # Ordered community table # Species are ordered by their weighted averages on site scores or <- vegemite(spe,

Dear all, I run R 2.7.2 under Windows and integrated BiodiversityR sucessfully into the R commander. Most functions of BiodiversityR run but others (like "analysis of species as response") produce blank windows and the message: Error in get(x, envir = RcmdrEnv(), mode = mode, inherits = FALSE) : Variable "operatorFont" nicht gefunden What's wrong? Best regards, Frieda

Estimados, Muchas gracias por sua ayuda, ya pude instalar data.table y esta funcionando. Respecto al paquete biodiversityR, no se porque ahora no me corre. El script esta correcto, pero no se porque me tira error. > fase<-diversitycomp(biobsp, y=biopcat,factor1="Fase",index="richness",method=?s") Error in diversitycomp(biobsp, y = biopcat, factor1 =

Dear List! I installed R and quite a few packages I use. When I try to start BiodiversityR the library loads without any problems but GUI do not start. Rcmdr loads without any problems. I am using R 2.13.0 64 bit. Downgrade to R 2.12.2 works. Thanks, Janos

Hello, everybody, I hope somebody could help me with a dist() function. I have a data frame of size 2*4087 (col*row), where col corresponds to the treatment and rows are species, values are Hellinger distances, I should reconstruct a distance matrix with a dist() function. I know that "euclidean" method should be used. When I type: dist(dframe,"euclidean") it gives me a

I'm trying to patch the current asterisk CVS with spandsp-0.0.1k.tar.gz. Everything compiles fine but when I go to patch the asterisk/apps/Makefile it fails: asterisk:/usr/src/spandsp2# patch < Makefile.patch can't find file to patch at input line 3 Perhaps you should have used the -p or --strip option? The text leading up to this was: -------------------------- |--- Makefile.orig

Dear Users,I have two matrices A=15*365 and B=1*365. i want to calculate "Euclidean Distance" between these matrices in such a way that i should have euclidean distance of matrix B against all the columns of matrix A. More precisely, first i want euclidean dist. of column 1 of A against B, then column 2 against B, 3rd column of A against B and so on.is there a way in r to do it?your help

Dear R-Help-Team, I would like to cluster my data using the ward-method. In several papers I read (e.g. Bahrenberg) that it is neccesary to use the "squared euclidean distance" with the ward-method. Unfortunatelly I cannot find this term in r as a method for measuring the distance. Does anybody have an idea? Thanks in advance, Carolin [[alternative HTML version deleted]]

I am studying on statistical shape analysis, I wonder is there any way or package available that I can perform Euclidean Distance Matrix Analysis (EDMA I or EDMA II) in R... thanks Gokhan -- View this message in context: http://r.789695.n4.nabble.com/Euclidean-Distance-Matrix-Analysis-EDMA-in-R-tp2266797p2266797.html Sent from the R help mailing list archive at Nabble.com.

> BDR> You will need to call it something else: dist is a clone of an S > BDR> function, and dist(X, "manhattan") is well-established usage. > > one could still imagine an extra Y argument such that > dist(X, Y=myY, method="euclidean") > and dist(X, "euclidean", Y=myY) > would work > one could even make it such that > both

a <- c(1:10) b <- c(.5, .6, .9, 10, .4, 3, 4, 9, 0, 11) d <- c(21:30) z <- data.frame(a,b,d) library(fields) results <- c() for(i in 1:(length(rownames(z))-1)){ results[i] <- rdist(z[i,], z[(i+1),]) } results.1 <- data.frame(results) f <- rownames(z) r <- f[-1] rownames(results.1) <- r colnames(results.1) <- f[1] this does what I want it to do - is

Hi, I have a set of nodes and a dissimilarity matrix for them, as well as a csv file in which the diss matrix has been converted to [node_1, node_2, dissimilarity] format. I would like to visualize this as a graph in Euclidean space (that is, similar nodes clumped together in clusters), rather than the seriation visualization given by dissplot(). I am using Network WorkBench for my

> 3x3 subset used > Locus1 Locus2 Locus3 > Samp1 GG <NA> GG > Samp2 AG CA GA > Samp3 AG CA GG > > The euclidean distance function is defined as: sqrt(sum((x_i - y_i)^2)) My > assumption was that the difference between

Hii rstudio members I am learning rstudio, For my manuscript I am trying to plot CCA using species and environmental data. But I am getting error like Error in cca.default(sptrans, envtrans) : all row sums must be >0 in the community data matrix *My code is like * library(vegan) library(ggplot2) library(dplyr) rassspec<-read.csv("C:/Users/hp/Desktop/R_data/rassspec.csv",

Estimados, Soy usuario de Mac y desde que instale la nueva version de R y Rstudio, no puedo cargar el paquete Rcmdr. Lo miso me pasa con el paquete BiodiversityR. Alguien tiene alguna posible solución? Desde ya muchas gracias. Saludos, Luis > library(Rcmdr) Loading required package: RcmdrMisc Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) :

I am getting the error message: > library(Rcmdr) Loading required package: car Loading required package: MASS Loading required package: nnet Error : .onAttach failed in attachNamespace() for 'Rcmdr', details: call: structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class = "tclObj") error: [tcl] invalid command name "image".

Hi 1. I have two raster files *.asc (identical size) 2. The data in each contain presence or absence data in each cell represented by a 1 or 0 respectively 3. I would like to take the location of each 1 (presence cell) in raster file 1 and measure the euclidean distance to the nearest 1 (presence cell) in raster file 2. Obviously in some cases there will be overlap so the distance will be zero.