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#Gerar valores aleatorios para as duas dimensões | |
X1<- sample(seq(-1.5,1.5, by= 0.001)) | |
X2<- sample(seq(-1.5,1.5, by= 0.001)) | |
#Informa os coeficientes | |
beta0<- 1 | |
beta1<- 2 | |
beta2<- 3 | |
#Calcula os valores da função associada à equação do hiperplano | |
hyperplane<-beta0+beta1*X1+beta2*X2 | |
#Para cada valor de X1, calcula o valor de X2 que gera a reta que caracteriza o hiperplano | |
X2_0 <- (-X1*beta1 - beta0)/beta2 | |
#Para cada para x1 e x2_0 calcula a reta que caracteriza o hyperplano | |
hyperplane_0<-beta0+beta1*X1+beta2*X2_0 | |
#Dica, tire o comentário da linha baixo e execute-a para confirmar que os valores estão zerados | |
#hyperplane_0 | |
df_hyperplane <- tibble(X1= X1, X2=X2, X2_0= X2_0, hyperplane = hyperplane, hyperplane_0= hyperplane_0) | |
df_hyperplane %>% | |
mutate(classificação= ifelse(hyperplane<0,"Classe 1","Classe 2")) %>% | |
ggplot() + | |
geom_point(aes(x=X1, y= X2, color = classificação), size = 1) + | |
geom_point(aes(x=X1, y= X2_0),color = "black" , size = 0.5) + | |
theme_light() + | |
theme(panel.grid = element_blank()) |
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