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Modifying stat_smooth (2)

In this exercise we'll take a look at the standard error ribbons, which show the 95% confidence interval of smoothing models. ggplot2 and the Vocab data frame are already loaded for you.

Vocab has been given an extra column, year_group, splitting the dates into before and after 1995.

Diese Übung ist Teil des Kurses

Intermediate Data Visualization with ggplot2

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Interaktive Übung

Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.

# Using Vocab, plot vocabulary vs. education, colored by year group
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  # Add jittered points with transparency 0.25
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  # Add a smooth lin. reg. line (with ribbon)
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