R语言 graph包 attrData-class()函数中文帮助文档(中英文对照)

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attrData-class(graph)
attrData-class()所属R语言包：graph

                                        Class "attrData"
                                         类“attrData”

                                         译者：生物统计家园网 机器人LoveR

描述----------Description----------

A container class to manage generic attributes.  Supports named attributes with default values with methods for vectorized access.
一个容器类管理的通用属性。支持命名使用矢量访问的方法，使用默认值的属性。


类的对象----------Objects from the Class----------

Objects can be created by calls of the form new("attrData", defaults). The defaults argument should be a named list containing the initial attribute names and default values.   
创建对象可以通过检测的形式new("attrData", defaults)。 defaults参数应该是一个命名的列表，其中包含的初始属性的名称和默认值。


插槽----------Slots----------




data: Where custom attribute data is stored
data：自定义属性数据存储在哪里




defaults: A named list of known attribute names and
defaults：一个已知的属性名称命名列表


方法----------Methods----------




attrDataItem<- signature(self = "attrData", x = "character", attr = "character"): ...
attrDataItem < - signature(self = "attrData", x = "character", attr = "character")...




attrDataItem signature(self = "attrData", x = "character", attr = "missing"): ...
attrDataItemsignature(self = "attrData", x = "character", attr = "missing")...




attrDataItem signature(self = "attrData", x = "character", attr = "character"): ...
attrDataItemsignature(self = "attrData", x = "character", attr = "character")...




attrDefaults<- signature(self = "attrData", attr = "character", value = "ANY"): ...
attrDefaults < - signature(self = "attrData", attr = "character", value = "ANY")...




attrDefaults<- signature(self = "attrData", attr = "missing", value = "list"): ...
attrDefaults < - signature(self = "attrData", attr = "missing", value = "list")...




attrDefaults signature(self = "attrData", attr = "missing"): ...
attrDefaultssignature(self = "attrData", attr = "missing")...




attrDefaults signature(self = "attrData", attr = "character"): ...
attrDefaultssignature(self = "attrData", attr = "character")...




initialize signature(.Object = "attrData"): ...
初始化signature(.Object = "attrData")...




names return the names of the stored attributes
名返回的存储属性的名称




names<- set the names of the stored attributes
名< - 设置存储属性的名称




removeAttrDataItem signature(self="attrData", x="character", value="NULL"): Remove the data associated with
removeAttrDataItemsignature(self="attrData", x="character", value="NULL")：删除相关数据


作者（S）----------Author(s)----------


Seth Falcon



举例----------Examples----------


defaultProps <- list(weight=1, color="blue", friends=c("Bob", "Alice"))
adat <- new("attrData", defaults=defaultProps)

## Get all defaults[＃获取所有默认值。]
attrDefaults(adat)

## Or get only a specific attribute[＃或只得到一个特定的属性]
attrDefaults(adat, attr="color")

## Update default weight[＃更新默认的重量。]
attrDefaults(adat, attr="weight") <- 500

## Add new attribute[＃添加新的属性。]
attrDefaults(adat, attr="length") <- 0

## Asking for the attributes of an element you haven't customized[＃问你有没有自定义属性的元素]
## returns the defaults[＃返回的默认值]
attrDataItem(adat, x=c("n1", "n2"), attr="length")

## You can customize values[＃你可以自定义值]
attrDataItem(adat, x=c("n1", "n2"), attr="length") <- 5

## What keys have been customized?[＃键已定制？]
names(adat)


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