From 86a217e20bef8c3bbc2ba35c251c201161aac551 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bogumi=C5=82=20Kami=C5=84ski?= <bkamins@sgh.waw.pl>
Date: Sun, 3 Jul 2022 20:40:32 +0200
Subject: [PATCH] add exercise 9.3

---
 appB.jl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/appB.jl b/appB.jl
index b004345..de2eda6 100644
--- a/appB.jl
+++ b/appB.jl
@@ -157,6 +157,12 @@ summarystats(puzzles[puzzles.Popularity .== -100, "NbPlays"])
 sum(length, values(rating_mapping))
 nrow(good)
 
+# Code for exercise 9.3
+
+model2 = loess(ratings, mean_popularities; span=0.25);
+popularity_predict2 = predict(model2, ratings_predict);
+plot!(ratings_predict, popularity_predict2; width=5, color="yellow");
+
 # Code for exercise 10.1
 
 using BenchmarkTools