r语言TeachingDemos包绘制黑白脸谱图

r语言TeachingDemos包绘制黑白脸谱图 代码实现如下： install.packages(“TeachingDemos包”)#下载TeachingDemos包 library(“TeachingDemos”) #加载TeachingDemos包 faces2（x，ncols = 7）#x代表任意数据框，ncols = 7表示脸图按七列显示 范例结果如下：

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