ex1916(Sleuth2)
ex1916()所属R语言包：Sleuth2
Vitamin C and Colds
维生素C和感冒
译者：生物统计家园网 机器人LoveR
描述----------Description----------
Fictitious data set based on results of an experiment where subjects were randomly divided into two groups and given a placebo or vitamin c to take during the cold season. At the end of the cold season, the subjects were interviewed by a physician who determined whether they had or had not suffered a cold during the period. Skeptics interviewed the 800 subjects to determine who knew and who did not know to which group they had been assigned. Vitamin C has a bitter taste and those familiar with it could recognize whether their pills contained it.
虚拟数据集的基础上受试者随机分成两组，并给予安慰剂或维生素C在寒冷季节的实验结果。在寒冷的季节，受试者接受由医生确定他们是否有或没有遭受寒冷的期间。持怀疑态度的采访了800的主题，以确定谁知道，谁也不知道哪一组，他们被分配。维生素C具有苦味和那些熟悉它可以识别他们的药是否含有它。
用法----------Usage----------
ex1916
格式----------Format----------
A data frame with 4 observations on the following 4 variables.
一种数据框与4在以下4个变量的观测。
Knewa factor with levels "no" and "yes"
Knew水平"no"和"yes"的一个因素
Treatmenta factor with levels "placebo" and "vitC"
Treatment水平"placebo"和"vitC"的一个因素
Coldnumber of people who got a cold
Cold人数感冒了
NoColdnumber of people who did not get a cold
NoCold的人谁没有得到一个寒冷的
源----------Source----------
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
拉姆齐，F.L.和Schafer，D.W. （2002年）。的统计的猎犬：A课程方法的数据分析（第二版），达克斯伯里。
实例----------Examples----------
str(ex1916)
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 2012-9-30 10:06:23
