Fig. 2
From: Comparison of four light-response models using relative curvature measures of nonlinearity
Boxplots of the root-mean-square error for the four photosynthetic light response models (EM, RHM, NHM, and MRHM) for 42 datasets. The letters a-b at the top of each boxplot denote the significance of the difference in the means between any two models based on the Tukey′s HSD test. Means with different letters are significantly different at the 0.05 significance level. The horizontal solid lines represent the medians, and the asterisks within the boxplots represent the means, and the small open circles represent the data points.
