Plotting: Exercises and Solutions

Plotting rank-ordered ratings for 90s movies

Exercise

Using this dataset, for each year in the 90s separately, plot the ratings for individual movies, rank-ordered such that the lowest-rated movies start on the left. The resulting plot consists of ten lines (for each year in the 90s) that gradually go up, with each datapoint corresponding to a single movie rating.

Solution

from matplotlib import pyplot as plt
from datamatrix import io, operations as ops

dm = io.readxlsx('data/movies.xlsx')
dm = (dm.year >= 1990) & (dm.year < 2000)
for year, year_dm in ops.split(dm.year):
    plt.plot(sorted(year_dm.rating), label=year)
plt.legend(title='Year')
plt.ylabel('Rating')
plt.xlabel('Movie #')
plt.show()

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