fix twp typos

MaggieLxj · Jul 12, 2019 · 4090c70 · 4090c70
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diff --git a/ch4applied.Rmd b/ch4applied.Rmd
@@ -234,7 +234,7 @@ Predict on the 1st group predictors with KNN (k = 5):
 ktrain1 <- boston13[isTraining, c('zn', 'indus', 'chas', 'nox')]
 ktest1 <- boston13[-isTraining, c('zn', 'indus', 'chas', 'nox')]
 ktrain.result <- boston13$crime.rate[isTraining]
-kmod1 <- knn(ktrain1, ktest1, ktrain.result1, k = 5)
+kmod1 <- knn(ktrain1, ktest1, ktrain.result, k = 5)
 mean(kmod1 == boston13$crime.rate[-isTraining])
 ```
 

diff --git a/ch4conceptual.Rmd b/ch4conceptual.Rmd
@@ -62,7 +62,7 @@ The length of each side for $p$ dimensional hypercube is $0.1^{\frac1p}$.
 
 # Question 5
 
-5a: When the Bayes decision boundary is linear, QDA performs better than QDA on training set.
+5a: When the Bayes decision boundary is linear, QDA performs better than LDA on training set.
 LDA performs better than QDA on test set.
 
 5b: When the Bayes boundary is non-linear, QDA performs better than LDA on both training and test sets.