matplotlib设置分辨率

问题描述

绘制贝塔分布的时候感觉太小看不清

import numpy as np
from scipy import stats
import matplotlib.pyplot as plt
%matplotlib inline

x = np.linspace(0, 1, 100)
labels = []
a_list, b_list = [0.5, 5, 1, 2, 2], [0.5, 1, 3, 2, 5]
for a, b in zip(a_list, b_list):
    labels.append('α={}, β={}'.format(a, b))
    y = stats.beta(a=a, b=b).pdf(x)
    plt.axis([0, 1.0, 0, 2.5])
    plt.tick_params(axis='both', labelsize=14)
    plt.plot(x, y)
plt.plot()
plt.legend(labels=labels, loc='best')

解决方案

设置figure，函数原型Figure(figsize=None, dpi=None, facecolor=None, edgecolor=None, linewidth=0.0, frameon=None, subplotpars=None, tight_layout=None, constrained_layout=None)

figsize，图像尺寸，默认为[6.4, 4.8]

dpi，分辨率，默认为100.0

plt.figure(figsize=(a, b), dpi=dpi)

参考文献

1. matplotlib.pyplot
2. matplotlib.figure.Figure