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training.python.datascience/source/plotting/agg-test.py

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Python

import matplotlib
import pandas as pd
from matplotlib import pyplot
from matplotlib.axes import Axes
matplotlib.use("TkAgg")
pyplot.style.use('ggplot')
pyplot.rcParams["font.family"] = "Cabin"
data = pd.DataFrame(data={
"product": ["pomme", "poire", "banane", "pêche"],
"price": [1.99, 2.49, 2.99, 3.49],
"wpu": [200, 180, 140, 200]
})
# Générer un graphique dans Matplotlib
data.plot.bar(x="product", y=["price", "wpu"], rot=0.0, secondary_y="wpu", legend="reverse", title="Prix et poids unitaires")
prices, weights = pyplot.gcf().axes # type: Axes
prices.legend(bbox_to_anchor=(0.0, 1.1), loc="upper left")
weights.legend(bbox_to_anchor=(1.0, 1.1), loc="upper right")
# Il est difficile de personnaliser le contenu du graphique
options: dict = {"fontsize": 8, "color": "w", "rotation": 90, "label_type": "center"}
prices.bar_label(prices.containers[0], labels=[f"{p}" for p in data["price"]], **options)
weights.bar_label(weights.containers[0], labels=[f"{p}g" for p in data["wpu"]], **options)
pyplot.gcf().savefig("eda-matplotlib-bar-labeled.png")