stem函数python

在Python中，stem函数通常用于绘制茎叶图，也被一些人称为棒棒糖图。它可以通过调整参数来改变垂直线的类型、顶点的颜色和大小等。具体而言，stem函数的参数包括x和y，分别表示横坐标和纵坐标。通过设置linefmt参数，可以定义垂直线的颜色和类型，例如linefmt='r-'代表红色的实线。basefmt参数用于设置y=0这条直线的样式。而markerfmt参数则可以设置顶点的类型和颜色，比如C3.表示顶点为小实点且颜色为第三种颜色。例如，plt.stem(x,y, linefmt='r-', basefmt='r-',markerfmt='C3.')可以绘制出一个茎叶图。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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