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4 - Intro to R Load data

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Fitting Models• Model grammar, Formula• Linear Models• Diagnostics5lm• lm(formula, data, weight, subset, na.action)• Formula•y ~ x1 + x2 + x3*x46

Basic Tests•binom.test()•chisq.test()•t.test() #talk about thislater3Clean the data• Data is not usually ready to work with.• Examine data first.• Rename variables?4

Fitting Models• Model grammar, Formula• Linear Models• Diagnostics5lm• lm(formula, data, weight, subset, na.action)• Formula•y ~ x1 + x2 + x3*x46

Page 1: 4 - Intro to RModels and Testing1Lo
Page 5 and 6: Diagnostics• Residual sums of squ
Page 7 and 8: Anova• Want to test means for mul
Page 9: Your Turn• Calculate basic summar

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