ss.ci(SixSigma)
ss.ci()所属R语言包:SixSigma
Confidence Interval for the mean
置信区间的平均
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Computes a confidence interval for the mean of the variable (parameter or feature of the process), and prints the data, a histogram with a density line, the result of the Shapiro-Wilks normality test and a quantile-quantile plot.
计算的变量(参数或功能的过程)的平均值的置信区间,并打印数据的密度线,直方图,结果夏皮罗威尔克斯正态性检验和分位数 - 分位数的图。
用法----------Usage----------
ss.ci(x, sigma2 = NA, alpha = 0.05, data = NA, xname = "x",
approx.z = FALSE, main = "Confidence Interval for the Mean",
digits = 3,
sub = "", ss.col = c("#666666", "#BBBBBB", "#CCCCCC",
"#DDDDDD", "#EEEEEE"))
参数----------Arguments----------
参数:x
A numeric vector with the variable data
一个数值向量的可变数据
参数:sigma2
The population variance, if known
总体方差,如果知道的话
参数:alpha
The eqn\alpha error used to compute the 100*(1-\α)\% confidence interval
EQN \阿尔法错误计算100*(1-\α)\%的置信区间
参数:data
The data frame containing the vector
含有向量的数据框
参数:xname
The name of the variable to be shown in the graph
在图中所示的变量的名称
参数:digits
Significant digits for output
重大位数输出
参数:approx.z
If TRUE it uses z statistic instead of t when sigma is unknown and sample size is greater than 30. The default is FALSE, change only if you want to compare with results obtained with the old-fashioned method mentioned in some books.
如果是TRUE,而不是T使用z统计西格玛是未知的样本量是大于30。默认值是FALSE,改变只,如果你想用的一些书籍中提到的老式方法得到的结果进行比较。
参数:main
The main title for the graph
图的主标题为
参数:sub
The subtitle for the graph (recommended: six sigma project name)
字幕图(推荐:六西格玛项目名称)
参数:ss.col
A vector with colors
向量与颜色
Details
详细信息----------Details----------
When the population variance is known, or the size is greater than 30, it uses z statistic. Otherwise, it is uses t statistic.<br> If the sample size is lower than 30, a warning is displayed so as to verify normality.
当总体方差是已知的,或大小大于30,它使用z统计量。否则,它使用t统计量。<br>如果样本大小是低于30,显示一个警告,以核实正常。
值----------Value----------
The confidence Interval.<br> A graph with the figures, the Shapiro-Wilks test, and a histogram.
置信区间。参考的数字,夏皮罗威尔克斯测试,和柱状图的曲线图。
注意----------Note----------
Thanks to the kind comments and suggestions from the anonymous reviewer of a tentative article.
由于样的意见和建议的暂定文章的匿名审稿人。
(作者)----------Author(s)----------
Emilio L. Cano
参考文献----------References----------
Six Sigma with R. Statistical Engineering for Process Improvement, Use R!, vol. 36. Springer, New York. http://www.springer.com/statistics/book/978-1-4614-3651-5.<br>
参见----------See Also----------
ss.data.rr
ss.data.rr
实例----------Examples----------
ss.ci(len, data=ss.data.strings, alpha=0.05,
sub="Guitar Strings Test | String Length",
xname="Length")
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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