三维词干图显示了从xy平面延伸的线。 z位置描述数据值的圆(默认)或其他标记符号终止每个词干。
句法
stem3(Z) // It plots the data sequence Z as stems that extend from the xy-plane.stem3(X, Y, Z) // It plots the data sequence Z at the value specified by X and Y. X, Y, and Z must be all be vectors or matrices of the same size.stem3(..., 'fill')// It specifies whether to color the interior of the circle at the end of the stem.stem3(..., LineSpec) // It specifies the line style, marker symbol, and color for the stems.h = stem3(...) // It returns handles to line graphics objects.例子
创建三维词干图以可视化两个变量的功能。
x=t, y=tsin(t)z=e^t/10-1for 0≤t≤6πt=linspace(0, 6*pi, 200);
x=t;
y=t.*sin(t);
z=exp(t/10)-1;
stem3(x, y, z, 'filled')【MATLAB 3D函数stem3()】输出
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