cat.heart(SMPracticals)
cat.heart()所属R语言包:SMPracticals
Cat Heart Data
猫心数据
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Data from a Latin square experiment on the potencies of cardiac drugs given to anesthetized cats.
数据从一个拉丁方设计给麻醉猫的心脏药物的效力。
用法----------Usage----------
data(cat.heart)
格式----------Format----------
A data frame with 64 observations on the following 6 variables.
64个观察以下6个变量的数据框。
Day on which experiment performed
日,而实验进行
Time morning or afternoon
时间上午或下午
Observer four observers took part
观察四个观察员参加
Drug cardiac drug given to cat
药物强心药给猫
y 100 times log dose in micrograms at which cat died
Y 100次log微克剂量的猫死了,
x 100 times log cat heart weight in grams
×100倍log猫心脏重量以克
Details
详细信息----------Details----------
These are results from an experiment to determine the relative potencies of eight similar cardiac drugs, labelled A–H, where A is a standard. The method used was to infuse slowly a suitable dilution of the drug into an anaesthetized cat. The dose at which death occurred and the weight of the cat's heart were recorded. Four observers each made two determinations on each of eight days, with a Latin square design used to eliminate observer and time differences. The heart weight cannot be known at the start of the experiment, but might be expected to affect comparisons
这些都是从实验的结果,以确定相对效力的8个类似心脏药物,标记为A-H,其中A是一个标准的。使用的方法是缓慢注入到合适的稀释的药物麻醉猫。发生死亡的剂量和猫的心脏的重量。四名观察员分别做了两个决定了八天,拉丁方设计,用来消除观察员和时间上的差异。心脏重量不能被称为在实验开始时,但可能会对预期影响比较
源----------Source----------
Unpublished lecture notes, Imperial College, London.
未发表的讲义,伦敦帝国学院。
参考文献----------References----------
Page 447.
实例----------Examples----------
data(cat.heart)
anova(lm(y~Observer+Time+Day+Drug+Observer:Time,data=cat.heart))
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。
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