利用matplotlib.pyplot画直方图

最新推荐文章于 2025-03-24 10:45:01 发布

achiv

最新推荐文章于 2025-03-24 10:45:01 发布

阅读量1.7k

点赞数 1

分类专栏：数据分析文章标签： python 经验分享概率论

本文链接：https://blog.youkuaiyun.com/qq_37088317/article/details/103739363

版权

本文分享如何使用matplotlib.pyplot库在Python中绘制直方图。通过实例代码，解释了在绘制直方图时遇到的问题及解决方法，包括条形与x轴坐标对齐和数据范围设置，最终得到理想中的直方图效果。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

利用matplotlib.pyplot画直方图

现有原始数据：[7,4,7,7,1,6,6,6,5,5,6,7,5,6,3,3,7,7,5,6,6,4,5,5,3,7,6,7,4,7,4,4,4,5,3,7,5,5,4,5,4,6,6,5,4,6,5,7,2,5,2,6,5,4,5,3,5,3,5,6,4,7,7,6,6,5,6,7,1,2,4,6,5,7,7,5,6,7,6,6,5,5,2,5,7,6,6,6,7,2,5,7,5,6,3,5,7,5,5,4,3,5,3,7,6,6,5,6,5,2,7,3,5,5,6,6,2,5,7,6,7,6,6,6,6,4,2,3,7,6,6,4,6,2,5,4,1,7,5,7,5,5,2,4,6,3,6,5,2,7,7,2,2,6,6,3,6,4,6,6,1,6,3,3,5,4,6,6,5,5,3,4,6,4,7,7,7,1,4,6,6,6,4,5,4,3,4,5,6,6,6,7,4,7,3,5,5,5,6,4,5,7,6,4,7,6,6,6,7,1,7,5,5,3,5,4,5,6,1,5,5,6,5]，其中，列表里每个元素代表一个人选择的分数，我要统计分数为1,2,3,4,5,6,7各自的总人数，并画出直方图。
具体实现代码如下：

import pandas as pd
import numpy as np
import matplotlib.pyplot as plt

# 原始数据，我要统计分数为1,2,3,4,5,6,7各自的人数
datas = pd.Series([7,4,7,7,1,6,6,6,5,5,6,7,5,6,3,3,7,7,5,6,6,4,5,5,3,7,6,7,4,7,4,4,4,5,3,7,5,5,4,5,4,6<