现代统计图形 - 科学网—博客
现代统计图形 - 科学网—博客
现代统计图形 - 科学网—博客
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附录 D 本书R包<br />
为了配合本书的写作,作者特意编写了一个R包名为MSG(Modern<br />
Statistical Graphics的缩写),该包目前可从作者主页下载,在本书完成后<br />
也会发布到CRAN供读者下载。这里简要介绍一下它包含的函数和数据。<br />
D.1 函数说明<br />
usage() 显示一个函数的用法。该函数可以根据指定的函数名称获取函数的<br />
参数列表,并将其以整齐的方式打印出来,如:<br />
1 > # plot函数的用法<br />
2 > usage(plot)<br />
plot(x, y, ...)<br />
1 > # plot的默认用法,即plot.default<br />
2 > usage(plot, "default")<br />
plot(x, y = NULL, type = "p", xlim = NULL,<br />
ylim = NULL, log = "", main = NULL, sub = NULL,<br />
xlab = NULL, ylab = NULL, ann = par("ann"), axes = TRUE,<br />
frame.plot = axes, panel.first = NULL, panel.last = NULL,<br />
asp = NA, ...)<br />
1 > # plot在画经验分布函数的时候的用法,即plot.ecdf<br />
2 > usage(plot, "ecdf")<br />
plot(x, ..., ylab = "Fn(x)", verticals = FALSE,<br />
col.01line = "gray70", pch = 19)<br />
1 > # usage自身的用法<br />
2 > usage(usage)<br />
usage(FUN, class = NULL, w = 0.77)<br />
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