Erratum: Randomization in clinical studies

Article information

Korean J Anesthesiol. 2019;72(4):396-396

Publication date (electronic) : 2019 July 30

doi : https://doi.org/10.4097/kja.19049.e1

Chi-Yeon Lim ¹, Junyong In ²

¹Department of Biostatistics, Dongguk University College of Medicine, Korea

²Department of Anesthesiology and Pain Medicine, Dongguk University Ilsan Hospital, Goyang, Korea

Korean J Anesthesiol 2019 June 72(3): 221-232

https://doi.org/10.4097/kja.19049

The Appendix of this article contained an error throughout in which an incorrect symbol was used for the assignment: it should be <- characters (which is the gets arrow in R), and not ← symbol in the command lines.

For example, the corrected command lines are as below:

> N <- 1000
> K <- 3
> (rand <- crPar(N, K))
Object of class "crPar"
design = CR
N = 500
K = 3
groups = A B C

The authors would like to apologize for any inconvenience caused.

Article information Continued

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