Correlations between f_conv (x-axis) and f_tides (left) or f_str (right). Each point is either a protoclump (green points) or a random patch (orange points). The histograms are the projected distributions of the corresponding quantity. The vertical black lines correspond to f_conv = 16% and f_conv = 33%. The magenta squares are the medians of all of the points in bins of f_conv, and the error bars are the 16th and 84th percentiles of each quantity. Both f_tides and f_str show a positive correlation with f_conv. The Spearman correlation coefficient for f_tides and f_str against f_conv are 0.46 and 0.3, with p-values of 2 · 10⁻³, 5 · 10⁻³, respectively. Furthermore, protoclump regions occupy the upper-right quadrants in both panels.