surf = ax.plot_surface(X, Y, Z, cmap='coolwarm')plt.show()A选项:输出图像是一个点图B选项:输出图像是一个三维散点图C选项:输出图像是一条连续的曲线D选项:输出图像是一个三维曲面图 正确答案是:D 图1 问题解析 图2 题目运行代码 欢迎大家转发,一起传播知识和正能量,帮助到更多人。期待大家提出...
def plot_point_cov(points, nstd=3, ax=None, **kwargs): # 求所有点的均值作为置信圆的圆心 pos = points.mean(axis=0) # 求协方差 cov = np.cov(points, rowvar=False) return plot_cov_ellipse(cov, pos, nstd, ax, **kwargs) def plot_cov_ellipse(cov, pos, nstd=3, ax=None, **kwa...
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1)**2 - (Y - 1)** 2)#计算Z轴数据(高度数据)Z = (Z1 - Z2) * 2#绘制3D图形ax.plot_surface(X, Y, Z, rstride=1,#rstride(row)指定行的跨度cstride=1,#cstride(column)指定列的跨度cmap=plt.get_cmap('rainbow'))#设置颜色映射#设置Z轴范围ax.set_zlim(-2, 2)#设置标题plt.title("...
surf = ax.plot_surface(t, x, v, rstride=1, cstride=1, cmap=plt.cm.coolwarm,norm = norm,linewidth=0.5, antialiased=True) # 设置坐标轴 ax.set_xlabel('maturity') ax.set_ylabel('strike') ax.set_zlabel('market_imp_vol') ax.set_zlim((0.1,0.25)) ...
# Plot the surface. surf = ax.plotsurface(X, Y, Z, cmap=cm.coolwarm linewidth=0, anti=False) # Customizethe z axis. ax.set_zlim-1.01, 1.01 ax.zaxis.set_major_locator(LinearLocator10)) ax.zaxis.set_major_formatter(FormatStrFormatter'%.02f')) # Add a color bar whichmaps...
ax.plot_surface(X, Y, Z, rstride=8, cstride=8, alpha=0.3)cset = ax.contourf(X, Y, Z, zdir='z', offset=-100, cmap=cm.coolwarm)cset = ax.contourf(X, Y, Z, zdir='x', offset=-40, cmap=cm.coolwarm)cset = ax.contourf(X, Y, Z, zdir='y', offset=40, cmap=cm.coolwarm...
➤013D plot 1.基本语法 在安装matplotlib之后,自动安装有 mpl_toolkits.mplot3d。 #Importing Libraries importmatplotlib.pyplotasplt frommpl_toolkits.mplot3dimportaxes3d #3D Plotting fig = plt.figure() ax = plt.axes(projection="3d") #Labeling ...
fig=plt.figure()ax=fig.gca(projection='3d')# Make data.X=np.arange(-5,5,0.25)Y=np.arange(-5,5,0.25)X,Y=np.meshgrid(X,Y)R=np.sqrt(X**2+Y**2)Z=np.sin(R)# Plot the surface.surf=ax.plot_surface(X,Y,Z,cmap=cm.coolwarm,linewidth=0,antialiased=False)# Customize the z ax...
surf = ax.plot_surface(X, Y, Z, cmap=cm.coolwarm, linewidth=0, antialiased=False) # Customize the z axis. ax.set_zlim(-1.01, 1.01) ax.zaxis.set_major_locator(LinearLocator(10)) ax.zaxis.set_major_formatter(FormatStrFormatter('%.02f')) # Add a color bar which maps values to co...