How to compute confusion matrix on Iris dataset?
lda, r
Solution
Try this one
library(MASS)
iris.lda <- lda(Species ~ . , data = iris)
table(predict(iris.lda, type="class")$class, iris$Species)
setosa versicolor virginica
setosa 50 0 0
versicolor 0 48 1
virginica 0 2 49
Problem
Data set: Iris How to compute the confusion matrix on the data set for an LDA (Linear Discriminant Analysis) model? ``` >iris.lda = lda(Species ~ . , data = iris) >table(predict(iris.lda, type="class"), iris$Species) Error in sort.list(y) : 'x' must be atomic for 'sort.list' Have you called 'sort' on a list? ```