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. 2023 Aug 29;17:80. doi: 10.1186/s40246-023-00521-4

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 4 — Random Forest (RF) machine learning algorithm to estimate the length of hospitalization of each SARS-CoV-2-infected patient admitted to the hospital. A Correlation plot between the RF estimated and the actual duration of hospitalization of SARS-CoV-2-infected patients; distribution of error (residuals) for training (B, red square) and test (C, blue square) sets. D The forty most significant factors in the structure of the RF model developed to predict the duration of hospitalization of SARS-CoV-2-infected patients (color figure online)