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Fixed two typos. #1

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Fixed two typos. #1

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4 changes: 2 additions & 2 deletions LearningModels.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -588,7 +588,7 @@
"\n",
"We sum this measure up over all our data points, to create whats known as the **error functional** or **risk functional** (also just called **error*, **cost**, or **risk**) of using line $h_1(x)$ to fit our points $y_i \\in \\cal{D}$ (this notation is to be read as \"$y_i$ in $\\cal{D}$\") :\n",
"\n",
"$$ R_{\\cal{D}}(h_i(x)) = \\frac{1}{N} \\sum_{y_i \\in \\cal{D}} (y_i - h_1(x_i))^2 $$\n",
"$$ R_{\\cal{D}}(h_1(x)) = \\frac{1}{N} \\sum_{y_i \\in \\cal{D}} (y_i - h_1(x_i))^2 $$\n",
"\n",
"where $N$ is the number of points in $\\cal{D}$.\n",
"\n",
Expand Down Expand Up @@ -2022,7 +2022,7 @@
"\n",
">The predictor interface extends the notion of an estimator by adding a predict method that takes an array X_test and produces predictions for X_test, based on the learned parameters of the estimator.\n",
"\n",
"So, for increasing polynomial degree, and thus feature dimension `d`, we fit a `LinearRegression` model on the traing set. We then use scikit-learn again to calculate the error or risk. We calculate the `mean_squared_error` between the model's predictions and the data, BOTH on the training set and test set. We plot this error as a function of the defree of the polynomial `d`."
"So, for increasing polynomial degree, and thus feature dimension `d`, we fit a `LinearRegression` model on the traing set. We then use scikit-learn again to calculate the error or risk. We calculate the `mean_squared_error` between the model's predictions and the data, BOTH on the training set and test set. We plot this error as a function of the degree of the polynomial `d`."
]
},
{
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