To add a legend to a plot in Matplotlib, we can use thelegendfunction. By default, thelegendfunction will add a legend for all elements on the plot. However, we can specify which elements we want to include in the legend by passing alabelargument when plotting those elements. importmatplo...
50)y1=np.sin(x)y2=np.cos(x)# 创建散点图plt.scatter(x,y1,label='sin(x) - how2matplotlib.com')plt.scatter(x,y2,label='cos(x) - how2matplotlib.com')# 添加图例plt.legend()# 设置标题和轴标签plt.title('Simple Scatter Plot with Legend')plt.xlabel('X axis')plt.ylabel('Y axis'...
1. 在图表中添加基本图例 要在Matplotlib中添加图例,我们可以使用legend()方法。下面是一个简单的例子: importmatplotlib.pyplotasplt x=[1,2,3,4,5]y=[2,4,6,8,10]plt.plot(x,y,label='Line 1')plt.legend()plt.show() Python Copy Output: 在这个例子中,我们创建了一个简单的折线图,并使用label...
plt.subplot(2,2,2)#可以隔开,也可以不隔开plt.plot(X,S) plt.subplot(212) plt.plot([1, 2, 3, 4], [1, 4, 9, 16]) plt.show() 0x06 参考 1.CSDN开码牛-matplotlib命令与格式:图例legend语法及设置 2.CSDNweixin_41950276-plt.legend( )函数,给图像加上图例 3.matplotlib.pyplot.legend官方...
frompylabimport*fromnumpyimport*x=linspace(0,pi,20)L1,=plot(x,sin(x),label='Sin')L2,=plot(x,cos(x),label='Cos')f1=legend(handles=[L1],bbox_to_anchor=(0.5,1.15),ncol=2)gca().add_artist(f1)legend(handles=[L2],bbox_to_anchor=(0.5,0.0),ncol=2)show() ...
no legend being drawn. **2. Labeling existing plot elements** To make a legend for lines which already exist on the axes (via plot for instance), simply call this function with an iterable of strings, one for each legend item. For example:: ...
import matplotlib.pyplot as plt line1, = plt.plot([1,2,3], label="Line 1", linestyle='--') line2, = plt.plot([3,2,1], label="Line 2", linewidth=4) # 为第一个线条创建图例 first_legend = plt.legend(handles=[line1], loc=1) # 手动将图例添加到当前轴域 ax = plt.gca()....
legend = plt.legend(["First", "Second"]) frame = legend.get_frame() frame.set_facecolor('blue') 1. 2. 3. 1.4 设置图例标题 legend = plt.legend(["CH", "US"], title='China VS Us') 1. 1.5 设置图例名字及对应关系 legend = plt.legend([p1, p2], ["CH", "US"]) ...
How to add a legend to the plots? For example, if using several moving averages it will be useful to show a legend to map moving averages to line plots. Is clear how this is done using matplotlib but I did not see an example of how to do...
[i]) plt.plot(theta, wave(amp[i], theta, phase[i]), label = (r'$\gamma = $'+lgd1+', $\phi = $' +lgd2))plt.xlabel(r'$\theta$ (rad)', labelpad = 15)plt.ylabel('y', labelpad = 15)# 调整图例plt.legend(bbox_to_anchor=(1.05, 1.04))# 保存图形,留好边距plt.savefig...