Python绘图:创建子图、柱状图、饼图、直方图、散点图和箱线图
import numpy as np import matplotlib.pyplot as plt
创建画布和子图
fig, (ax1, ax2) = plt.subplots(1, 2, figsize=(10, 5))
设置x轴范围和步长
x = np.arange(-np.pi, np.pi, 0.01)
画sinx的函数图像
ax1.plot(x, np.sin(x), linewidth=2.5) ax1.set_xlabel('x') ax1.set_ylabel('sin(x)') ax1.set_title('Sin(x) Function')
画cosx的函数图像
ax2.plot(x, np.cos(x), linewidth=2.5) ax2.set_xlabel('x') ax2.set_ylabel('cos(x)') ax2.set_title('Cos(x) Function')
显示图像
plt.show()
import pandas as pd import matplotlib.pyplot as plt
读取数据
data = pd.read_excel('a.xlsx')
统计每个地区的酒店数量
hotel_counts = data['地区'].value_counts()
创建画布和子图
fig, ax = plt.subplots(figsize=(10, 5))
画柱状图
ax.bar(hotel_counts.index, hotel_counts.values, color='red')
设置横轴标签旋转90度
plt.xticks(rotation=90)
显示柱子上方的数值
for x, y in zip(hotel_counts.index, hotel_counts.values): ax.text(x, y, str(y), ha='center', va='bottom')
设置标题、横轴标签、纵轴标签
ax.set_title('Hotel Counts by Region') ax.set_xlabel('Region') ax.set_ylabel('Counts')
显示图像
plt.show()
import pandas as pd import matplotlib.pyplot as plt
读取数据
data = pd.read_excel('a.xlsx')
统计每个价格等级的酒店数量
hotel_counts = data['价格等级'].value_counts()
创建画布和子图
fig, ax = plt.subplots(figsize=(10, 5))
画柱状图
ax.bar(hotel_counts.index, hotel_counts.values)
显示柱子上方的数值
for x, y in zip(hotel_counts.index, hotel_counts.values): ax.text(x, y, str(y), ha='center', va='bottom')
设置标题、横轴标签、纵轴标签
ax.set_title('Hotel Counts by Price Level') ax.set_xlabel('Price Level') ax.set_ylabel('Counts')
显示图像
plt.show()
import pandas as pd import matplotlib.pyplot as plt
读取数据
data = pd.read_excel('a.xlsx')
统计每个价格等级的酒店数量
hotel_counts = data['价格等级'].value_counts()
计算每个价格等级的占比
hotel_percent = hotel_counts / hotel_counts.sum()
创建画布和子图
fig, ax = plt.subplots(figsize=(8, 8))
画饼图
ax.pie(hotel_counts.values, labels=hotel_counts.index, autopct='%1.1f%%')
设置标题和图例
ax.set_title('Hotel Proportion by Price Level') ax.legend(hotel_counts.index)
显示图像
plt.show()
import pandas as pd import matplotlib.pyplot as plt
读取数据
data = pd.read_excel('a.xlsx')
获取评分数据
scores = data['评分']
创建画布和子图
fig, ax = plt.subplots(figsize=(10, 5))
画直方图
ax.hist(scores, bins=6, range=(0, 5), alpha=0.8)
设置标题、横轴标签、纵轴标签
ax.set_title('Hotel Scores Distribution') ax.set_xlabel('Scores') ax.set_ylabel('Counts')
显示图像
plt.show()
import pandas as pd import matplotlib.pyplot as plt
读取数据
data = pd.read_excel('a.xlsx')
获取评分和价格数据
scores = data['评分'] prices = data['价格']
创建画布和子图
fig, ax = plt.subplots(figsize=(10, 5))
画散点图
ax.scatter(prices, scores, alpha=0.5)
设置标题、横轴标签、纵轴标签
ax.set_title('Hotel Scores vs Prices') ax.set_xlabel('Prices') ax.set_ylabel('Scores')
显示图像
plt.show()
import pandas as pd import seaborn as sns
读取数据
data = pd.read_excel('a.xlsx')
获取油尖旺地区的评分数据
yau_tsim_mong_scores = data.loc[data['地区'] == '油尖旺']['评分']
创建画布和子图
fig, ax = plt.subplots(figsize=(10, 5))
画箱线图
sns.boxplot(yau_tsim_mong_scores, ax=ax)
设置标题、横轴标签
ax.set_title('Scores Distribution in Yau Tsim Mong Region') ax.set_xlabel('Scores')
显示图像
plt.show()
原文地址: https://www.cveoy.top/t/topic/ooZz 著作权归作者所有。请勿转载和采集!