R：如何计算1,5 * IQR晶须的值

Question

如何计算1,5×IQR的上边界和下边界的值？

Answer 1

您可以使用boxplot.stats()使用的boxplot()功能：

R> boxplot.stats(rnorm(100))
$stats
[1] -2.3865817 -0.7195878  0.0889332  0.6237745  2.3702410

$n
[1] 100

$conf
[1] -0.123318  0.301184

$out
numeric(0)

R> 

记录在案：

  

值：

 List with named components as follows:

     

stats：长度为5的向量，包含较低的向量             胡须，下部“铰链”，中间，上部“铰链”和             上晶须的极端。

   n: the number of non-‘NA’ observations in the sample.

conf: the lower and upper extremes of the ‘notch’ (‘if(do.conf)’).
      See the details.

 out: the values of any data points which lie beyond the extremes
      of the whiskers (‘if(do.out)’).
 Note that ‘$stats’ and ‘$conf’ are sorted in _in_creasing order,
 unlike S, and that ‘$n’ and ‘$out’ include any ‘+- Inf’ values.