Convert data read from file to correct type

somacdivad · web-flow · commit 67ab75c5dd28 · 2019-07-24T10:41:56.000-05:00
diff --git a/ch16-scientific-computing-and-graphing/2-use-matplotlib-for-plotting-graphs.py b/ch16-scientific-computing-and-graphing/2-use-matplotlib-for-plotting-graphs.py
@@ -19,9 +19,9 @@
     my_file_reader = csv.reader(my_file)
     next(my_file_reader)  # skip header row
     for year, temperature, pirate_count in my_file_reader:
-        years.append(year)
-        temperatures.append(temperature)
-        pirates.append(pirate_count)
+        years.append(int(year))
+        temperatures.append(float(temperature))
+        pirates.append(int(pirate_count))
 
 plt.plot(pirates, temperatures, "r-o")
 
