R语言测试两个对象是否（几乎）相等all.equal()函数-中英文对照帮助文档

MicroRbt

        R语言测试两个对象是否（几乎）相等all.equal()函数-中英文对照帮助文档

                                         By MicroRbt Martinez PhD

R语言函数名：all.equal()
R语言函数功能：测试两个对象是否（几乎）相等
来自资源库：基础库（R语言自带）
all.equal()函数所属R语言包：所在R包具体名称、包功能的中英文双语描述见正文后面'--所在R语言包信息--'部分。

描述-----Description-----

all.equal(x, y) is a utility to compare R objects x and y testing near equality . If they are different, comparison is still made to some extent, and a report of the differences is returned. Do not use all.equal directly in if expressions—either use isTRUE(all.equal(....)) or identical if appropriate.
all.equal(x, y)是用于比较R对象x和y测试near equality的实用程序。如果它们不同，则仍会在一定程度上进行比较，并返回差异报告。不要在if表达式中直接使用all.equal；如果合适，请使用isTRUE(all.equal(....))或identical。


使用方法-----Usage-----

all.equal(target, current, ...)
## S3 method for class 'numeric' S3 method for class 'numeric'
all.equal(target, current,
tolerance = sqrt(.Machine$double.eps), scale = NULL,
countEQ = FALSE,
formatFUN = function(err, what) format(err),
..., check.attributes = TRUE)
## S3 method for class 'list' S3 method for class 'list'
all.equal(target, current, ...,
check.attributes = TRUE, use.names = TRUE)
## S3 method for class 'environment' S3 method for class 'environment'
all.equal(target, current, all.names=TRUE, ...)
## S3 method for class 'POSIXt' S3 method for class 'POSIXt'
all.equal(target, current, ..., tolerance = 1e-3, scale)
attr.all.equal(target, current, ...,
check.attributes = TRUE, check.names = TRUE)

参数-----Arguments-----

参数target介绍: R object.
R对象。

参数current介绍: other R object, to be compared with target.
其他R对象，与target比较。

参数...介绍: further arguments for different methods, notably the following two, for numerical comparison:
用于数值比较的不同方法（尤其是以下两个方法）的其他参数：

参数tolerance介绍: numeric ≥ 0. Differences smaller than tolerance are not reported. The default value is close to 1.5e-8.
数值??0。不报告小于tolerance的差异。默认值接近1.5e-8。

参数scale介绍: NULL or numeric > 0, typically of length 1 or length(target). See Details .
NULL或数字> 0，通常长度为1或length(target)c。请参阅Details。

参数countEQ介绍: logical indicating if the target == current cases should be counted when computing the mean (absolute or relative) differences. The default, FALSE may seem misleading in cases where target and current only differ in a few places; see the extensive example.
逻辑指示在计算平均（绝对或相对）差异时是否应计算target == current个案例。在target和current仅在几个地方有所不同的情况下，默认值FALSE可能会产生误导。请参阅广泛的示例。

参数formatFUN介绍: a function of two arguments, err, the relative, absolute or scaled error, and what, a character string indicating the kind of

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