Principal Component Analysis of the Cytokine and Chemokine Response to Human Traumatic Brain Injury (original) (raw)
Figure 3
72 Hour Time Pools Principal Component Analysis.
The figure shows cerebral microdialysis derived cytokine data from 12 patients (A–L) pooled into 72 hour time epochs(1,2). Principal component analysis has been used to identify the first 2 principal components which explain 55.6% of the variation in the dataset. Part A is a scores plot which shows the scores on each principal component for each of the observations. Part B is a loading plot which shows the cytokines which load on the respective principal components. In a similar pattern to figure 1, IL1b and TNF still cluster within the same quadrant of the plot.