Kway(vcdExtra)
Kway()所属R语言包：vcdExtra
Fit All K-way Models in a GLM
在GLM模型适合所有K-
译者：生物统计家园网 机器人LoveR
描述----------Description----------
Generate and fit all 0-way, 1-way, 2-way, ... k-way terms in a glm.
生成并符合所有0路，1路，2路，... K-办法中的glm。
This function is designed mainly for hierarchical loglinear models (or glms in the poission family), where it is desired to find the highest-order terms necessary to achieve a satisfactory fit.
此功能主要是针对层次对数线性模型（或glmS在泊松家庭），它是希望找到最高要达到一个令人满意的适合。
Using anova on the resulting glmlist object will then give sequential tests of the pooled contributions of all terms of degree k+1 over and above those of degree k.
使用anova上导致glmlist对象的综合贡献程度k+1及以上的学位k的所有条款将连续测试。
This function is also intended as an example of a generating function for glmlist objects, to facilitate model comparison, extraction, summary and plotting of model components, etc., perhaps using lapply or similar.
此功能还打算glmlist对象的生成函数的一个例子，以方便模型比较，提取，总结和绘制的模型组件等，可能使用lapply或类似的。
用法----------Usage----------
Kway(formula, family=poisson, data, ..., order = nt, prefix = "kway")
参数----------Arguments----------
参数：formula
a two-sided formula for the 1-way effects in the model. The LHS should be the response, and the RHS should be the first-order terms connected by + signs.
一个双面的公式模型中的1路效果。 LHS应该响应，并RHS应该是一阶+迹象。
参数：family
a description of the error distribution and link function to be used in the model. This can be a character string naming a family function, a family function or the result of a call to a family function. (See family for details of family functions.)
在模型中使用的误差分布的描述和链接功能。这可以是一个字符串，命名家庭功能，家庭功能，家庭功能调用的结果。 （见family家庭功能的详细信息。）
参数：data
an optional data frame, list or environment (or object coercible by as.data.frame to a data frame) containing the variables in the model. If not found in data, the variables are taken from environment(formula), typically the environment from which glm is called.
一个可选的数据框，列表或环境（或as.data.frame到数据框的对象强制转换），其中包含在模型中的变量。如果没有找到，数据，变量environment(formula)，通常是glm被称为环境。
参数：...
Other arguments passed to glm
其他参数传递给glm
参数：order
Highest order interaction of the models generated. Defaults to the number of terms in the model formula.
最高的相互作用生成的模型。默认的模型公式中的数量条款。
参数：prefix
Prefix used to label the models fit in the glmlist object.
前缀用来标记的模型适合在glmlist对象。
Details
详细信息----------Details----------
With y as the response in the formula, the 0-way (null) model is y ~ 1. The 1-way ("main effects") model is that specified in the formula argument. The k-way model is generated using the formula . ~ .^k. With the default order = nt, the final model is the saturated model.
y的响应formula，的0-办法（空）模型是y ~ 1。 1路（“主要影响”）的模型是formula参数中指定的。使用下面的公式. ~ .^k的k-模型生成。默认order = nt，最终的模型是饱和模型。
As presently written, the function requires a two-sided formula with an explicit response on the LHS. For frequency data in table form (e.g., produced by xtabs) you the data argument is coerced to a data.frame, so you should supply the formula in the form Freq ~ ....
目前写的，函数需要双面公式，在LHS一个明确的回应。对于频率的数据以表格的形式（例如，xtabs）你data参数被强制为一个数据框，所以你应该提供formula的形式Freq ~ ....
值----------Value----------
An object of class glmlist, of length order+1 containing the 0-way, 1-way, ... models up to degree order.
类的一个对象glmlist，的长度order+1含有0-单向，1单向，...度模型order。
（作者）----------Author(s)----------
Michael Friendly and Heather Turner
参见----------See Also----------
glmlist, summarise
glmlist，summarise
实例----------Examples----------
## artificial data[＃人工数据]
factors <- expand.grid(A=factor(1:3), B=factor(1:2), C=factor(1:3), D=factor(1:2))
Freq <- rpois(nrow(factors), lambda=40)
df <- cbind(factors, Freq)
mods3 <- Kway(Freq ~ A + B + C, data=df, family=poisson)
summarise(mods3)
mods4 <- Kway(Freq ~ A + B + C + D, data=df, family=poisson)
summarise(mods4)
# JobSatisfaction data[工作满意度数据]
data(JobSatisfaction, package="vcd")
modSat <- Kway(Freq ~ management+supervisor+own, data=JobSatisfaction, family=poisson, prefix="JSat")
summarise(modSat)
anova(modSat, test="Chisq")
# Rochdale data: very sparse, in table form[罗奇代尔的数据非常稀疏，以表格的形式]
data(Rochdale, package="vcd")
## Not run: [＃不运行：]
modRoch <- Kway(Freq~EconActive + Age + HusbandEmployed + Child + Education + HusbandEducation + Asian + HouseholdWorking,
data=Rochdale, family=poisson)
summarise(modRoch)
## End(Not run)[＃（不执行）]
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 2012-10-1 14:43:51
