sd.unbiased

This function computes the unbiased standard deviation of the values in <code>x</code>.
 If <code>na.rm</code> is <code>TRUE</code>, then missing values are removed before computation proceeds.

univar

Constructs various robust quality control charts based on the median or Hodges-Lehmann estimator (location) and the median absolute deviation (MAD) or Shamos estimator (scale). The estimators used for the robust control charts are all unbiased with a sample of finite size. For more details, see Park, Kim and Wang (2022) <doi:10.1080/03610918.2019.1699114>. In addition, using this R package, the conventional quality control charts such as X-bar, S, R, p, np, u, c, g, h, and t charts are also easily constructed. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R1A2C1091319).

Chanseok Park

rQCC

Robust Quality Control Chart

Min Wang

sd.unbiased function

<dl> <dt>x</dt>
<dd>a numeric vector or an R object which is coercible to one
 by <code>as.double(x)</code>.</dd> <dt>na.rm</dt>
<dd>logical. If <code>TRUE</code>, then missing values are removed before computation proceeds.</dd></dl>

Arguments

Author

Unbiased standard deviation — sd.unbiased

<dl>

 <dt>x</dt>
<dd>a numeric vector or an R object which is coercible to one
 by <code>as.double(x)</code>.</dd>

 <dt>na.rm</dt>
<dd>logical. If <code>TRUE</code>, then missing values are removed before computation proceeds.</dd>

</dl>

sd.unbiased: Unbiased standard deviation

Description

Usage

Arguments

Author

Details

See Also

Examples