search for: mdsdata

...seen a solution to my problem. I have a set of data files with filenames in the following form haydn1stmvt.jtf.sim0.142292.et.dist, where the latter half changes, after the jtf. What I am trying to do is process the set of these files using R's batch mode. using the following : library(mva) mdsdata <- read.table(file) cm <- cmdscale(mdsdata) x <- cm[,1] y <- -cm[,2] postscript("file.eps", height=5, width=5) plot(x,y,type="n", main="classical MDS") text(x,y,names(mdsdata)) dev.off() I want the variable file to contain the relevant file name with havi...

...utput values each), and also on a very much reduced version of the dataset (randomly select 1000 of the 25071 output values). I would like to look at similarities/dissimilarities between the 12 model runs. When I use metaMDS on the full dataset, I get a warning message: Warning message: In metaMDS(MDSdata, distance = "bray", k = 2, autotransform = FALSE) : Stress is (nearly) zero - you may have insufficient data I don't think I have insufficient data, with 12 x 25071 data points, and when I reduce the dataset to only 1000 values per model run (so only 12 x 1000) I don't get this...