The catsM data frame has 97 rows and 3 columns.
catsM数据框有97行,3列。
144 adult (over 2kg in weight) cats used for experiments with the drug digitalis had their heart and body weight recorded. 47 of the cats were female and 97 were male. The catsM data frame consists of the data for the male cats. The full data are in dataset cats in package MASS.
144成人(在重量2kg以上)与洋地黄类药物的实验使用的猫,他们的心脏和体重记录。猫有47名女性和97名男性。 catsM数据框由公猫的数据。完整的数据集cats包MASS。
用法----------Usage----------
cats
格式----------Format----------
This data frames contain the following columns:
这个数据框包含以下几列:
A factor for the sex of the cat (levels are F and M).
一个猫的性别因素(水平F和M)。
Body weight in kg.
体重(公斤)。
Heart weight in g.
在G的心脏重量。
源----------Source----------
The data were obtained from
数据取自
Fisher, R.A. (1947) The analysis of covariance method for the relation between a part and the whole. Biometrics, 3, 65–68.
费舍尔号共和国法(1947年),协方差分析方法之间的局部与整体的关系。生物识别技术,3,65-68。
参考文献----------References----------
Bootstrap Methods and Their Application. Cambridge University Press.
Modern Applied Statistics with S-Plus. Springer-Verlag.