r - R：如何计算 1,5*IQR 晶须的值

Question

如何计算 1,5×IQR 的上下边框的值？

Answer 1

您可以使用以下boxplot.stats()功能boxplot()：

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> 

它被记录在案：

价值：

 List with named components as follows:

stats：长度为 5 的向量，包含下胡须的极值、下“铰链”、中值、上“铰链”和上胡须的极值。

   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.