查看“使用 R/R/列表进行统计分析：入门”的源代码

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|R is very particular about what can be contained in a vector. All the elements need to be of the same type, an moreover must be either types of number<ref>There are actually 3 types of allowed numbers: "normal" numbers, complex numbers, and simple integers. This book deals almost exclusively with the first of these.</ref>, logical values, or strings of text<ref>This is not quite true, but unless you are a computer specialist, you are unlikely to use the final type: a vectors of elements storing "raw" computer bits, see <code>?raw</code></ref>.

If you want a collection of elements which are of different types, or not of one of the allowed vector types, you need to use a '''list'''.

|l1 <- list(a{{=}}1, b{{=}}1:3)
l2 <- c(sqrt, log) #
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==Notes==
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