data("iris")
summary(iris)
## Sepal.Length Sepal.Width Petal.Length Petal.Width
## Min. :4.300 Min. :2.000 Min. :1.000 Min. :0.100
## 1st Qu.:5.100 1st Qu.:2.800 1st Qu.:1.600 1st Qu.:0.300
## Median :5.800 Median :3.000 Median :4.350 Median :1.300
## Mean :5.843 Mean :3.057 Mean :3.758 Mean :1.199
## 3rd Qu.:6.400 3rd Qu.:3.300 3rd Qu.:5.100 3rd Qu.:1.800
## Max. :7.900 Max. :4.400 Max. :6.900 Max. :2.500
## Species
## setosa :50
## versicolor:50
## virginica :50
##
##
##
se observa que la variable sepal.len tiene un valor promedio de 5843
hist(iris$Sepal.Length,col = "red")
hist(iris$Sepal.Width,col = "blue")
hist(iris$Petal.Length,col = "blue")
hist(iris$Petal.Width,col = "red")
###
DIAGRAMA DE CAJAS
par(mfrow=c(2,2))
boxplot(iris$Sepal.Length,col = "blue",main="sepal.length")
boxplot(iris$Sepal.Width,col = "blue",main="sepal.width")
boxplot(iris$Petal.Length,col = "red",main="petal.length")
boxplot(iris$Petal.Width,col = "red",main="petal.width")
###CORRELACION ## DIAGRAMA DE DISPERSION se observa que la matriz de
correlacion las variables mas correlacionadas son petal.width,con una
correlacion r= 0.96
r=cor(iris[,-5])
r
## Sepal.Length Sepal.Width Petal.Length Petal.Width
## Sepal.Length 1.0000000 -0.1175698 0.8717538 0.8179411
## Sepal.Width -0.1175698 1.0000000 -0.4284401 -0.3661259
## Petal.Length 0.8717538 -0.4284401 1.0000000 0.9628654
## Petal.Width 0.8179411 -0.3661259 0.9628654 1.0000000
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