seq(base)
seq()所属R语言包：base
Sequence Generation
序列生成
译者：生物统计家园网 机器人LoveR
描述----------Description----------
Generate regular sequences. seq is a standard generic with a default method. seq.int is a primitive which can be much faster but has a few restrictions. seq_along and seq_len are very fast primitives for two common cases.
生成正则序列。 seq是一个标准通用的默认方法。 seq.int是一种原始的，可以更快，但有一些限制。 seq_along和seq_len两个常见的情况是非常快的原语。
用法----------Usage----------
seq(...)
## Default S3 method:[默认方法]
seq(from = 1, to = 1, by = ((to - from)/(length.out - 1)),
length.out = NULL, along.with = NULL, ...)
seq.int(from, to, by, length.out, along.with, ...)
seq_along(along.with)
seq_len(length.out)
参数----------Arguments----------
参数：...
arguments passed to or from methods.
参数传递到或从方法。
参数：from, to
the starting and (maximal) end value of the sequence.
序列的起点和（最大）的最终值。
参数：by
number: increment of the sequence.
编号：递增的序列。
参数：length.out
desired length of the sequence. A non-negative number, which for seq and seq.int will be rounded up if fractional.
所需序列的长度。一个非负数，seq和seq.int将四舍五入，如果分数。
参数：along.with
take the length from the length of this argument.
从这一论点的长度的长度。
Details
详情----------Details----------
The interpretation of the unnamed arguments of seq and seq.int is not standard, and it is recommended always to name the arguments when programming.
seq和seq.int是不是标准，并建议编程时总是命名参数。无名参数的解释
seq is generic, and only the default method is described here. Note that it dispatches on the class of the <STRONG>first</STRONG> argument irrespective of argument names. This can have unintended consequences if it is called with just one argument intending this to be taken as along.with: it is much better to use seg_along in that case.
seq是通用的，只有这里所描述的默认方法。请注意，它会发出第一类的<strong> </ STRONG>参数参数名，不论。这可以产生意想不到的后果，如果它只是一个打算这个参数被作为along.with叫：它是更好的使用seg_along在这种情况下。
seq.int is an internal generic which dispatches on methods for "seq" based on the class of the first supplied argument (before argument matching).
seq.int是一个内部通用的方法，其中调度"seq"类提供的第一个参数（参数匹配前）的基础上。
Typical usages are
典型的用法
值----------Value----------
seq.int and the default method of seq for numeric arguments return a vector of type "integer" or "double": programmers should not rely on which.
seq.int和seq默认的方法数字参数返回一个类型"integer"或"double"向量：程序员不应该靠上。
seq_along and seq_len always return an integer vector.
seq_along和seq_len总是返回一个整数向量。
参考文献----------References----------
The New S Language. Wadsworth & Brooks/Cole.
参见----------See Also----------
The methods seq.Date and seq.POSIXt.
方法seq.Date和seq.POSIXt。
:, rep, sequence, row, col.
:，rep，sequence，row，col。
举例----------Examples----------
seq(0, 1, length.out=11)
seq(stats::rnorm(20)) # effectively 'along'[有效的沿着“]
seq(1, 9, by = 2) # matches 'end'[比赛的结束“]
seq(1, 9, by = pi) # stays below 'end'[停留在下面的“结束”]
seq(1, 6, by = 3)
seq(1.575, 5.125, by=0.05)
seq(17) # same as 1:17, or even better seq_len(17)[同为1:17，甚至更好seq_len（17）]
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注：
注1：为了方便大家学习，本文档为生物统计家园网机器人LoveR翻译而成，仅供个人R语言学习参考使用，生物统计家园保留版权。
注2：由于是机器人自动翻译，难免有不准确之处，使用时仔细对照中、英文内容进行反复理解，可以帮助R语言的学习。
注3：如遇到不准确之处，请在本贴的后面进行回帖，我们会逐渐进行修订。
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发表于 2012-2-17 10:24:47
