search for: xydat

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2012 Jul 12
1
permutation test on paired samples
...ernative = "greater") perm.test(y,x,paired = TRUE,exact = TRUE,alternative = "greater") Then I wanted to use the package 'coin': require("coin") x <- c(1.83,0.50,1.62,2.48,1.68,1.88,1.55,3.06,1.30) y <- c(0.878,0.647,0.598,2.05,1.06,1.29,1.06,3.14,1.29) xydat <- data.frame(y = c(y,x),x = gl(2,length(x)),block = factor(rep(1:length(x),2))) wilcoxsign_test(y ~ x | block,data = xydat,alternative = "greater",distribution = exact()) oneway_test(y ~ x | block,data = xydat,alternative = "greater",distribution = exact()) While the result...
2007 Sep 24
2
calculating/plotting error ellipses
hello, sorry for posting what may be a simple question: i do have a matrix of coordinates (positional judgments, see below) and now want to calculate and plot the corresponding error ellipse. can anyone help me with the exact steps/syntax? > xyDat X Y 1 -0.49 -2.13 2 0.91 0.48 3 0.20 -2.80 4 -0.76 -3.23 5 -0.36 2.50 6 1.38 1.24 7 -1.73 -2.14 8 -0.28 -1.97 9 -2.65 0.91 10 -2.03 0.92 11 0.40 -1.54 12 -1.40 2.39 thank you very much in advance....