MATLAB函数stem()

二维词干图将数据显示为沿x轴从基线延伸的线。 y位置代表数据值的圆(默认值)或另一个标记终止每个词干。
句法

stem(Y) // It plots the data sequence Y as stems that extends from equally spaced and automatically created values along the x-axis. When Y is a matrix, stem plot, all items in a row against the same x value.stem(X, Y) // It plot X versus the column of Y. X and Y are vectors or matrices of a similar size. X can be the row or a column vector, and Y is a matrix with length(X) rows.stem(..., 'fill') // It specifies whether to color the circle at the end of the stem.stem(..., LineSpec) // It specifies the line style, marker symbol, and color. h = stem(...) // It returns a vector of Stem objects in h.

例子
f=e^-t/5 sint, 0≤t≤2πt=linspace (0, 2*pi, 200); f=exp (-.2*t).*sin(t); stem(t, f)

【MATLAB函数stem()】输出
MATLAB函数stem()

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