本文实例为大家分享了python绘制热力图的具体代码，供大家参考，具体内容如下
python的热力图是用皮尔逊相关系数来查看两者之间的关联性。
#encoding:utf-8
import numpy as np
import pandas as pd
from matplotlib import pyplot as plt
from matplotlib import cm
from matplotlib import axes
import pylab
pylab.mpl.rcParams[font.sans-serif] = [SimHei]#防止中文乱码
pylab.mpl.rcParams[axes.unicode_minus] = False#防止中文乱码
def draw_heatmap(data,xlabels,ylabels):
cmap = cm.Blues
figure=plt.figure(facecolor=w)
ax=figure.add_subplot(2,1,1,position=[0.1,0.15,0.8,0.8])
ax.set_yticks(range(len(ylabels)))
ax.set_yticklabels(ylabels)
ax.set_xticks(range(len(xlabels)))
ax.set_xticklabels(xlabels)
vmax=data[0][0]
vmin=data[0][0]
for i in data:
for j in i:
