laply是R中哪些包装的一部分? [英] laply is part of what package in R?

问题描述

laply for R是哪个软件包的一部分?

laply for R is part of what package?

我得到:

 "Error: could not find function "laply"".

谢谢.

推荐答案

在CRAN上的某些贡献包中查找某处的函数的一种有用方法是

A useful way to find functions that are somewhere in some contributed package on CRAN is

install.packages("sos")
library("sos")
findFn("laply")

(当然，第一个命令每次R安装只需要一次...)

(of course, the first command is only necessary once per R installation ...)

在这种情况下，您会得到

In this case, you get

> findFn("laply")
found 5 matches

，然后在您的Web浏览器中打开一个网页，该网页显示(如上所述)plyr程序包中有一个laply函数.

and a web page opens in your web browser that shows you (as stated above) that there is an laply function in the plyr package.

当然，findFn()的用途要广泛得多-例如，您可以尝试findFn("compositional data analysis")(如果您对此感兴趣).

Of course, findFn() is much more broadly useful -- for example, you could try findFn("compositional data analysis") (if that was what you were interested in).

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