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Stats Homework. Go to http://sqlzoo.net/ Do as much as you can in 2 hours Let me know what you did by email No need to send me lots of screen shots Just summarize your experience (good, bad, ugly). http://www.nytimes.com/2009/01/07/technology/business-computing/07program.html. Plot Example.

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stats homework
Stats Homework
  • Go to http://sqlzoo.net/
  • Do as much as you can in 2 hours
  • Let me know what you did by email
    • No need to send me lots of screen shots
    • Just summarize your experience (good, bad, ugly)
plot example
Plot Example
  • help(ldeaths)
  • plot(mdeaths, col="blue", ylab="Deaths", sub="Male (blue), Female (pink)", ylim=range(c(mdeaths, fdeaths)))
  • lines(fdeaths, lwd=3, col="pink")
scatter plot
Scatter Plot
  • plot(as.vector(mdeaths), as.vector(fdeaths))
  • g=glm(fdeaths ~ mdeaths)
  • abline(g)
  • g$coef

(Intercept) mdeaths

-45.2598005 0.4050554

hist density
Hist & Density
  • par(mfrow=c(2,1))
  • hist(fdeaths/mdeaths, nclass=30)
  • plot(density(fdeaths/mdeaths))
help demo example
Help, Demo, Example
  • demo(graphics)
    • example(plot)
    • example(lines)
    • help(cars)
    • help(WWWusage)
    • example(abline)
    • example(text)
    • example(par)
  • boxplots
    • example(boxplot)
    • help(chickwts)
  • demo(plotmath)
  • pairs
    • example(pairs)
    • help(quakes)
    • help(airquality)
    • help(swiss)
    • help(attitude)
    • Anorexia
      • utils::data(anorexia, package="MASS")
      • pairs(anorexia, col=c("red", "green", "blue")[anorexia$Treat])
  • counting
    • example(table)
    • example(quantile)
    • example(hist)
    • help(faithful)
slide8
Randomness
    • example(rnorm)
    • example(rbinom)
    • example(rt)
  • Normality
    • example(qqnorm)
  • Regression
    • help(cars)
    • example(glm)
    • demo(lm.glm)
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