FAQ: Multiple Linear Regression - Visualizing Results with Matplotlib

This community-built FAQ covers the “Visualizing Results with Matplotlib” exercise from the lesson “Multiple Linear Regression”.

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Machine Learning

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Hello there ! just one question, how does this scatterplot give us hint on " how the independent variables impact prices". Are we close to the real values ? How do i know by this plot that my predictions are almost right ? is not another solution to plot actual y and predicted ones so what in an instant lookup we can see the differences like two side by side histograms ! Thanks !


my guess is that the closer to the center - the better the prediction - which is why there is a glut around a slope of 1?

How to print in different colors, predicted results? think this would show perfectly the difference

Guess this would do the thing to show in colors and difference, as we have 708 rows in test batch so we need to plot each row as a colored dot.

plt.scatter(range(708), y_predict, c=“red”)

plt.scatter(range(708), y_test, c=“blue”)


I had a same question and guess I solved with this:

plt.scatter(range(708), y_predict, c=“red”)

plt.scatter(range(708), y_test, c=“blue”)


Original plot is good too as dots line up more on diagonal as more are equal but for me colored ones seems to show difference more easy