Figure 1

Pair plot pairwise relationship between the most common peaks in the binning method. The responsive and unresponsive intensities are coloured red and blue, respectively. The plots in the lower triangle show the relationship between two peaks for responsive and unresponsive classes; this relationship is in terms of the normalized intensity. The diagonal shows the distribution of the normalized intensity of each peak; the y-axis indicates the frequency while the x-axis indicates the normalized intensity. The upper triangle shows the person correlation for the relationship between two peaks for responsive and unresponsive classes.