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S-PLUS Lecture 6

S-PLUS Lecture 6. Jaeyong Lee. Graphical Parameters. type = “c”: c =p (default), l, b,s,o,h,n. pch=“+” : character or numbers 1 – 18 lty=1 : numbers lwd=2 : numbers axes = “L”: L= F, T xlab =“string”, ylab=“string” sub = “string”, main =“string” xlim = c(lo,hi), ylim= c(lo,hi)

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S-PLUS Lecture 6

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  1. S-PLUS Lecture 6 Jaeyong Lee

  2. Graphical Parameters type = “c”: c =p (default), l, b,s,o,h,n. pch=“+” : character or numbers 1 – 18 lty=1 : numbers lwd=2 : numbers axes = “L”: L= F, T xlab =“string”, ylab=“string” sub = “string”, main =“string” xlim = c(lo,hi), ylim= c(lo,hi) And some more.

  3. Session: Graphical Parameters x <- 1:10 y <- 2*x + rnorm(10,0,1) plot(x,y,type=“p”) #Try l,b,s,o,h,n # axes=T, F # xlab=“age”, ylab=“weight” # sub=“sub title”, main=“main title” # xlim=c(0,12), ylim=c(-1,12)

  4. Interactive Graphics Functions • locator(n,type=“p”) :Waits for the user to select locations on the current plot using the left mouse button. This continues until n (default 500) points have been selected. • identify(x, y, labels) : Allow the user to highlight any of the points defined by x and y. • text(x,y,”Hey”): Write text at coordinate x,y.

  5. Session: Interactive Graphics x <- 1:10 y <- 2*x + rnorm(10,0,1) plot(x,y) text(2, 3.5, “Hey!”) locator(2, type=“p”, pch=“+”) identify(1:3, 4:6, letters[1:3]) text(locator(1), "Outlier", adj=0)

  6. Session:Plots for Multivariate Data pairs(stack.x) x <- 1:20/20 y <- 1:20/20 z <- outer(x,y,function(a,b){cos(10*a*b)/(1+a*b^2)}) contour(x,y,z) persp(x,y,z) image(x,y,z)

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