我有以下代码,创建了一个包含各个国家及其对应得分的小数据帧:
import pandas
import numpy
import matplotlib
import matplotlib.pyplot as plt
df = pandas.DataFrame(data = ["Norway", "Denmark", "Iceland",
"Switzerland", "Finland", "Netherlands", "Canada", "New Zealand",
"Sweden", "Australia"], columns = ["Countries"])
df["Score"] = [7.6, 7.55, 7.50, 7.45, 7.40, 7.35, 7.30, 7.25, 7.20,
7.15]
然后我使用matplotlib创建条形图:
bars = df['Countries']
height = df['Score']
plt.bar(bars, height, align = "center", alpha = 0.5)
plt.ylabel('Happiness Score')
plt.title('Happiness by Country')
plt.show
我不确定如何完成以下两件事: 1)使x轴上的国家名称错开,以免相互交叉 2)不同比例缩放y轴,以使所有分数看起来不那么接近
plt.ylim(7,8)
来调整缩放。 - Rocky Li