如何用matplotlib给饼图加标题
时间: 2023-06-19 14:03:54 浏览: 226
可以通过plt.title()函数给matplotlib绘制的饼图添加标题,具体步骤如下:
1. 导入matplotlib库:
```python
import matplotlib.pyplot as plt
```
2. 绘制饼图:
```python
# 数据
labels = ['A', 'B', 'C', 'D']
data = [10, 30, 20, 40]
# 绘图
plt.pie(data, labels=labels)
```
3. 添加标题:
```python
plt.title('My pie chart')
```
完整代码示例:
```python
import matplotlib.pyplot as plt
# 数据
labels = ['A', 'B', 'C', 'D']
data = [10, 30, 20, 40]
# 绘图
plt.pie(data, labels=labels)
# 添加标题
plt.title('My pie chart')
# 显示图像
plt.show()
```
相关问题
用Matplotlib绘制饼图
好的,下面是用Matplotlib绘制饼图的代码示例:
```python
import matplotlib.pyplot as plt
# 数据
labels = ['A', 'B', 'C', 'D'] # 标签
sizes = [15, 30, 45, 10] # 数据列表
colors = ['red', 'green', 'blue', 'yellow'] # 颜色列表
# 画饼图
plt.pie(sizes, labels=labels, colors=colors, autopct='%1.1f%%', startangle=90)
# 添加标题
plt.title('Pie Chart')
# 显示图表
plt.show()
```
希望这个代码示例能够帮助你绘制出你想要的饼图。
matplotlib绘制饼图
好的,下面是使用matplotlib绘制饼图的示例代码:
```python
import matplotlib.pyplot as plt
# 定义数据
labels = ['A', 'B', 'C', 'D']
sizes = [15, 30, 45, 10]
colors = ['red', 'orange', 'yellow', 'blue']
# 绘制饼图
plt.pie(sizes, labels=labels, colors=colors, autopct='%1.1f%%', startangle=90)
# 添加标题
plt.title('Pie Chart')
# 显示图形
plt.show()
```
上述代码中,首先定义了饼图的数据,包括标签、占比和颜色。然后使用`plt.pie()`函数绘制饼图,其中`autopct`参数用于在图中显示每个数据所占比例,`startangle`参数用于设置起始角度。最后使用`plt.title()`函数添加标题,并使用`plt.show()`函数显示图形。
阅读全文
相关推荐
















