corresp(MASS)
corresp()所属R语言包：MASS
Simple Correspondence Analysis
简单的对应分析
译者：生物统计家园网 机器人LoveR
描述----------Description----------
Find the principal canonical correlation and corresponding row- and column-scores from a correspondence analysis of a two-way contingency table.
查找从一个双向的应急表的对应分析和相应的行和列得分的主要典型相关。
用法----------Usage----------
corresp(x, ...)
## S3 method for class 'matrix'
corresp(x, nf = 1, ...)
## S3 method for class 'factor'
corresp(x, y, ...)
## S3 method for class 'data.frame'
corresp(x, ...)
## S3 method for class 'xtabs'
corresp(x, ...)
## S3 method for class 'formula'[类formula的方法]
corresp(formula, data, ...)
参数----------Arguments----------
参数：x, formula
The function is generic, accepting various forms of the principal argument for specifying a two-way frequency table. Currently accepted forms are matrices, data frames (coerced to frequency tables), objects of class "xtabs" and formulae of the form ~ F1 + F2, where F1 and F2 are factors.
该功能是通用的，接受各种形式的主要参数指定一个双向的频率表。目前公认的形式是矩阵，数据框（裹挟频率表），对象类"xtabs"和公式的形式~ F1 + F2，其中F1和F2因素。
参数：nf
The number of factors to be computed. Note that although 1 is the most usual, one school of thought takes the first two singular vectors for a sort of biplot.
因素的数量来计算。请注意，虽然是最常用的，一个学校的思想，需要一个双标图排序的前两个奇异向量。
参数：y
a second factor for a cross-classification.
一个跨分类的第二个因素。
参数：data
a data frame against which to preferentially resolve variables in the formula.
针对其中的数据框优先解决公式中的变量。
参数：...
If the principal argument is a formula, a data frame may be specified as well from which variables in the formula are preferentially satisfied.
如果主要论点是一个公式，可以指定一个数据框，以及优先满足从公式中的变量。
Details
详情----------Details----------
See Venables & Ripley (2002). The plot method produces a graphical representation of the table if nf=1, with the areas of circles representing the numbers of points. If nf is two or more the biplot method is called, which plots the second and third columns of the matrices A = Dr^(-1/2) U L and B = Dc^(-1/2) V L where the singular value decomposition is U L V. Thus the x-axis is the canonical correlation times the row and column scores. Although this is called a biplot, it does not have any useful inner product relationship between the row and column scores. Think of this as an equally-scaled plot with two unrelated sets of labels. The origin is marked on the plot with a cross. (For other versions of this plot see the book.)
维纳布尔斯和雷普利（2002年）。 plot方法产生一个表的图形表示，如果nf=1，各界代表点的区域。 nf如果是两个或更多的biplot方法被调用时，该图矩阵的第二列和第三列A = Dr^(-1/2) U L和B = Dc^(-1/2) V L奇异值分解<X >因此，x轴是典型相关的行和列的分数。虽然这被称为双标图，它没有任何有用的内积关系之间的行和列的分数。想到这两个无关的标签与同等规模的积。原产地标记与交叉的图。 （见这个图的其他版本的书。）
值----------Value----------
An list object of class "correspondence" for which print, plot and biplot methods are supplied. The main components are the canonical correlation(s) and the row and column scores.
为一个列表对象的类"correspondence"print，plot和biplot方法提供。其主要成分是典型相关（S），行和列的分数。
参考文献----------References----------
Modern Applied Statistics with S. Fourth edition. Springer.
Biplots. Chapman & Hall.
参见----------See Also----------
svd, princomp.
svd，princomp。
举例----------Examples----------
(ct <- corresp(~ Age + Eth, data = quine))
## Not run: plot(ct)[＃不运行：图（CT）]
corresp(caith)
biplot(corresp(caith, nf = 2))
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。
|
发表于 2012-2-16 18:49:49
