Skip to main content
. 2021 Jun 2;16(6):e0252121. doi: 10.1371/journal.pone.0252121

Fig 4. eNose measurements cluster SARS CoV-2 positive participants.

Fig 4

A. An example of the raw eNose measurement from one participant. Each line is one of 10 sensors. B. PCA of the equilibrium end-values only. C. PCA of the 3rd degree polynomial fit of the entire time-series. n = 503. The 27 positive samples are in red.