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Merge pull request #9 from mmaorc/fix-movie-average-calculation-example

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Fix 'Toy Story' movie average calculation bug in Ex8
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Gerges Dib
2018-10-08 22:03:20 -04:00
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parent f531bf28d2 07bf4dd931
commit 40fd933e36
1 changed files with 1 additions and 1 deletions
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Exercise8/exercise8.ipynb
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@@ -468,7 +468,7 @@
"\n", "\n",
"# From the matrix, we can compute statistics like average rating.\n", "# From the matrix, we can compute statistics like average rating.\n",
"print('Average rating for movie 1 (Toy Story): %f / 5' %\n", "print('Average rating for movie 1 (Toy Story): %f / 5' %\n",
" np.mean(Y[0, R[0, :]]))\n", " np.mean(Y[0, R[0, :] == 1]))\n",
"\n", "\n",
"# We can \"visualize\" the ratings matrix by plotting it with imshow\n", "# We can \"visualize\" the ratings matrix by plotting it with imshow\n",
"pyplot.figure(figsize=(8, 8))\n", "pyplot.figure(figsize=(8, 8))\n",