There is an error in affiliation 2 for author Satish T. S. Bukkapatnam. Affiliation 2 should be: Department of Industrial and Systems Engineering, Texas A&M University, College Station, Texas, United States of America.
A sentence and a reference are missing from the second paragraph of the Introduction. The third sentence of the second paragraph in the Introduction section should read: Specifically these signals exhibit dynamic intermittencies and other transient behaviors (Cheng, Changqing, et al., 2015).
The reference is: Cheng, Changqing, et al. "Time series forecasting for nonlinear and non-stationary processes: a review and comparative study." IIE Transactions 47.10 (2015): 1053–1071.
There are errors in the second sentence of the Discussion. The correct sentence is: Nonlinear dynamics of HRV signals originate from the variations in ion channels [21] and the neural impulses [22] controlled by the sympathetic division (SYD) and the parasympathetic division (PYD) during OSA episodes.
Reference
- 1.Le TQ, Bukkapatnam STS (2016) Nonlinear Dynamics Forecasting of Obstructive Sleep Apnea Onsets. PLoS ONE 11(11): e0164406 https://doi.org/10.1371/journal.pone.0164406 [DOI] [PMC free article] [PubMed] [Google Scholar]