is.regular(zoo)
is.regular()所属R语言包：zoo
Check Regularity of a Series
检查规律的一个系列
译者：生物统计家园网 机器人LoveR
描述----------Description----------
is.regular is a regular function for checking whether a series of ordered observations has an underlying regularity or is even strictly regular.
is.regular一系列有序的观察是否有一个基本的规律，或者甚至是严格的定期检查是一个普通的功能。
用法----------Usage----------
is.regular(x, strict = FALSE)
参数----------Arguments----------
参数：x
an object (representing a series of ordered observations).
一个目的（占一系列有序意见）。
参数：strict
logical. Should strict regularity be checked? See details.
逻辑。严格的规律性，被检查吗？查看详细信息。
Details
详细信息----------Details----------
A time series can either be irregular (unequally spaced), strictly regular (equally spaced) or have an underlying regularity, i.e., be created from a regular series by omitting some observations. Here, the latter property is called regular. Consequently, regularity follows from strict regularity but not vice versa.
时间序列可以是不规则（间隔不等），严格定期（等距），或创建一个基本的规律，即从一个普通的系列省略一些意见。在这里，后者的属性被称为常规。因此，规律性从严格的规律性，但不反之亦然。
is.regular is a generic function for checking regularity (default) or strict regularity. Currently, it has methods for "ts" objects (which are always strictly regular), "zooreg" objects (which are at least regular), "zoo" objects (which can be either irregular, regular or even strictly regular) and a default method. The latter coerces x to "zoo" before checking its regularity.
is.regular是一个通用的功能检查的规律（默认）或严格的规律。目前，它有一些方法"ts"对象（这是始终严格规则），"zooreg"对象（其中至少有定期），"zoo"对象（可以是不规则的，定期的，甚至严格定期）和一个默认的方法。后者胁迫x到"zoo"前检查它的规律性。
值----------Value----------
A logical is returned indicating whether x is (strictly) regular.
返回的逻辑是否x是（严格）定期。
参见----------See Also----------
zooreg, zoo
zooreg，zoo
实例----------Examples----------
## checking of a strictly regular zoo series[＃检查的严格的定期动物园，系列]
z <- zoo(1:10, seq(2000, 2002.25, by = 0.25), frequency = 4)
z
class(z)
frequency(z) ## extraction of frequency attribute[＃提取的频率属性]
is.regular(z)
is.regular(z, strict = TRUE)
## by omitting observations, the series is not strictly regular[＃省略的观察，该系列产品是没有严格的定期]
is.regular(z[-3])
is.regular(z[-3], strict = TRUE)
## checking of a plain zoo series without frequency attribute[＃检查一个普通的动物园系列没有频率属性]
## which is in fact regular[＃这是在事实上定期]
z <- zoo(1:10, seq(2000, 2002.25, by = 0.25))
z
class(z)
frequency(z) ## data driven computation of frequency[＃数据驱动的计算频率]
is.regular(z)
is.regular(z, strict = TRUE)
## by omitting observations, the series is not strictly regular[＃省略的观察，该系列产品是没有严格的定期]
is.regular(z[-3])
is.regular(z[-3], strict = TRUE)
## checking of an irregular zoo series[＃的不规则动物园系列检查]
z <- zoo(1:10, rnorm(10))
z
class(z)
frequency(z) ## attempt of data-driven frequency computation[＃数据驱动的频率计算的尝试]
is.regular(z)
is.regular(z, strict = TRUE)
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 2012-10-2 07:52:20
