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R - Análise Gráfica com Plots
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#Parábola Quadrática | |
x = -10:10 | |
plot( x = x, y = x**2, main = "Parábola") | |
plot( x = x, y = x**2, main = "Parábola", type='l') | |
plot( x = x, y = x**2, main = "Parábola", type='p') | |
plot( x = x, y = x**2, main = "Parábola", type='b') | |
plot( x = x, y = x**2, main = "Parábola", type='o') | |
plot( x = x, y = x**2, main = "Parábola", type='h') #histograma | |
plot( x = x, y = x**2, main = "Parábola", type='s') | |
plot( x = x, y = x**2, main = "Parábola", type='S') | |
#Análise de Tendências | |
head(cars) | |
summary(cars) | |
plot(x= cars$speed, y = cars$dist) | |
#---------------------------------------------------------- | |
#Regressao Linear | |
install.packages("dplyr") | |
library(dplyr) | |
lm(cars, formula = cars$dist~cars$speed) %>% View() | |
y.tend = lm(data = cars, formula = cars$dist~cars$speed)$coefficients | |
x = cars$speed | |
#Criar linha diagonal | |
lines(x=x,y=cbind(1,x) %*% y.tend, type='l',col='blue') | |
#---------------------------------------------------------- | |
#Histograma (Frequencia, distribuicao) | |
xablau = -10:10 | |
hist(xablau^2) | |
#---------------------------------------------------------- | |
#Plot Medicao Ozonio | |
medicaoOzonioMaio = | |
airquality %>% | |
filter(Month == 5) %>% | |
select(Ozone) %>% | |
arrange(Ozone) | |
summary(medicaoOzonioMaio) | |
plot(x= medicaoOzonioMaio$Ozone) | |
#Mediana | |
lines(x=c(0,31), y= c(18,18), col = 'red') | |
#c(0,31) - quantidade de dias no mes | |
#c(18,18) - mediana | |
#Min | |
lines(x=c(0,31), y= c(1,1), col = 'blue') | |
#Boxplot | |
f = airquality$Ozone ~ airquality$Month | |
boxplot(f,data=airquality) | |
#Multiplos Graficos | |
par(mfrow=c(1,2)) | |
plot(airquality$Wind, airquality$Ozone) | |
plot(airquality$Solar.R, airquality$Ozone) |
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