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Explore the Linear Regression Using Python
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Explore the Linear Regression Using Python

Explore the Linear Regression Using Python

1. What is the Linear Regression?
Basic Understanding of the Linear RegressionHow Mathematically Does It Work?Build the Linear RegressionWorking with DatasetUseful Functions for Researching and Visualizing Dataset
2. Correlation
What Is Correlation? How To Find Pearson CoefficientCorrelation MatrixCalculating the Pearson Coefficient Using NumPy and PandasChallenge
3. Building and Training Model
Train-split evaluationFittingPredictionChallenge
4. Metrics to Evaluate the Model
ResidualsMean Absolute Error (MAE)MSE and RMSER-squaredNot Always the Linear Regression?
5. Multivariate Linear Regression
Building the Regression Model Based on Several VariablesTry to EvaluateChallenge

Challenge

Let’s combine our knowledge!

Task

In this task, you build, train and fit your model and make predictions based on it. This time you will make predictions about total_phenols, based on flavanoids. It means that your target now is total_phenols.

Your plan:

  1. [Line #18] Define the target (in this task it's total_phenols).
  2. [Line #25] Split the data 70-30 (70% of the data is for training and 30% is for testing) and insert 1 as a random parameter.
  3. [Line #26] Initialize linear regression model .
  4. [Line #27] Fit the model using your tain data.
  5. [Line #30] Assign np.array() to the variable new_flavanoids if their number is 1 (don't forget to use function .reshape(-1,1)).
  6. [Line #31] Predict and assign the amount of flavanoids to the variable predicted_value.
  7. [Line #32] Print the predicted amount of flavanoids.

Task

In this task, you build, train and fit your model and make predictions based on it. This time you will make predictions about total_phenols, based on flavanoids. It means that your target now is total_phenols.

Your plan:

  1. [Line #18] Define the target (in this task it's total_phenols).
  2. [Line #25] Split the data 70-30 (70% of the data is for training and 30% is for testing) and insert 1 as a random parameter.
  3. [Line #26] Initialize linear regression model .
  4. [Line #27] Fit the model using your tain data.
  5. [Line #30] Assign np.array() to the variable new_flavanoids if their number is 1 (don't forget to use function .reshape(-1,1)).
  6. [Line #31] Predict and assign the amount of flavanoids to the variable predicted_value.
  7. [Line #32] Print the predicted amount of flavanoids.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 3. Chapter 4
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Challenge

Let’s combine our knowledge!

Task

In this task, you build, train and fit your model and make predictions based on it. This time you will make predictions about total_phenols, based on flavanoids. It means that your target now is total_phenols.

Your plan:

  1. [Line #18] Define the target (in this task it's total_phenols).
  2. [Line #25] Split the data 70-30 (70% of the data is for training and 30% is for testing) and insert 1 as a random parameter.
  3. [Line #26] Initialize linear regression model .
  4. [Line #27] Fit the model using your tain data.
  5. [Line #30] Assign np.array() to the variable new_flavanoids if their number is 1 (don't forget to use function .reshape(-1,1)).
  6. [Line #31] Predict and assign the amount of flavanoids to the variable predicted_value.
  7. [Line #32] Print the predicted amount of flavanoids.

Task

In this task, you build, train and fit your model and make predictions based on it. This time you will make predictions about total_phenols, based on flavanoids. It means that your target now is total_phenols.

Your plan:

  1. [Line #18] Define the target (in this task it's total_phenols).
  2. [Line #25] Split the data 70-30 (70% of the data is for training and 30% is for testing) and insert 1 as a random parameter.
  3. [Line #26] Initialize linear regression model .
  4. [Line #27] Fit the model using your tain data.
  5. [Line #30] Assign np.array() to the variable new_flavanoids if their number is 1 (don't forget to use function .reshape(-1,1)).
  6. [Line #31] Predict and assign the amount of flavanoids to the variable predicted_value.
  7. [Line #32] Print the predicted amount of flavanoids.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 3. Chapter 4
toggle bottom row

Challenge

Let’s combine our knowledge!

Task

In this task, you build, train and fit your model and make predictions based on it. This time you will make predictions about total_phenols, based on flavanoids. It means that your target now is total_phenols.

Your plan:

  1. [Line #18] Define the target (in this task it's total_phenols).
  2. [Line #25] Split the data 70-30 (70% of the data is for training and 30% is for testing) and insert 1 as a random parameter.
  3. [Line #26] Initialize linear regression model .
  4. [Line #27] Fit the model using your tain data.
  5. [Line #30] Assign np.array() to the variable new_flavanoids if their number is 1 (don't forget to use function .reshape(-1,1)).
  6. [Line #31] Predict and assign the amount of flavanoids to the variable predicted_value.
  7. [Line #32] Print the predicted amount of flavanoids.

Task

In this task, you build, train and fit your model and make predictions based on it. This time you will make predictions about total_phenols, based on flavanoids. It means that your target now is total_phenols.

Your plan:

  1. [Line #18] Define the target (in this task it's total_phenols).
  2. [Line #25] Split the data 70-30 (70% of the data is for training and 30% is for testing) and insert 1 as a random parameter.
  3. [Line #26] Initialize linear regression model .
  4. [Line #27] Fit the model using your tain data.
  5. [Line #30] Assign np.array() to the variable new_flavanoids if their number is 1 (don't forget to use function .reshape(-1,1)).
  6. [Line #31] Predict and assign the amount of flavanoids to the variable predicted_value.
  7. [Line #32] Print the predicted amount of flavanoids.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Let’s combine our knowledge!

Task

In this task, you build, train and fit your model and make predictions based on it. This time you will make predictions about total_phenols, based on flavanoids. It means that your target now is total_phenols.

Your plan:

  1. [Line #18] Define the target (in this task it's total_phenols).
  2. [Line #25] Split the data 70-30 (70% of the data is for training and 30% is for testing) and insert 1 as a random parameter.
  3. [Line #26] Initialize linear regression model .
  4. [Line #27] Fit the model using your tain data.
  5. [Line #30] Assign np.array() to the variable new_flavanoids if their number is 1 (don't forget to use function .reshape(-1,1)).
  6. [Line #31] Predict and assign the amount of flavanoids to the variable predicted_value.
  7. [Line #32] Print the predicted amount of flavanoids.

Switch to desktop for real-world practiceContinue from where you are using one of the options below
Section 3. Chapter 4
Switch to desktop for real-world practiceContinue from where you are using one of the options below
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