Created
November 11, 2017 15:50
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| attach(Bank) | |
| # regressao linear com salarioi inicial e anos de escolaridade | |
| regressao <- lm(salbeg ~ edlevel) | |
| regressao | |
| anova(regressao) | |
| predito <- fitted(regressao) | |
| predito | |
| Bank$predito <- c(predito) | |
| Bank | |
| Bank$subtractSalario <- c(Bank$salbeg - Bank$predito) | |
| Bank | |
| hist(Bank$subtractSalario) | |
| # regressao linear com salarioi inicial e anos de escolaridade e sexo | |
| regressao1 <- lm(salbeg ~ edlevel + sex) | |
| regressao1 | |
| anova(regressao1) | |
| summary(regressao1) | |
| predito1 <- fitted(regressao1) | |
| predito1 | |
| Bank$predito1 <- c(predito1) | |
| View(Bank) | |
| Bank$subtractSalario1 <- c(Bank$salbeg - Bank$predito1) | |
| Bank | |
| hist(Bank$subtractSalario1) | |
| library(ggplot2) | |
| plot <- ggplot(Bank, aes(x=edlevel, y=salbeg, color=sex)) | |
| plot + geom_point() | |
| # subset com salario inicial > 10000 | |
| menorQueDez <- subset(Bank, salbeg <= 10000) | |
| View(menorQueDez) | |
| regressao2 <- lm(menorQueDez$salbeg ~ menorQueDez$edlevel + menorQueDez$sex) | |
| regressao2 | |
| anova(regressao2) | |
| summary(regressao2) | |
| predito2 <- fitted(regressao2) | |
| predito2 | |
| menorQueDez$predito2 <- c(predito2) | |
| View(menorQueDez) | |
| menorQueDez$subtractSalario2 <- c(menorQueDez$salbeg - menorQueDez$predito2) | |
| menorQueDez | |
| hist(menorQueDez$subtractSalario2) | |
| View(menorQueDez) |
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