Fig. 2
From: Analysis of near infrared spectra for age-grading of wild populations of Anopheles gambiae
Predicted vs actual age for NIRS validation set 6 (VS6) with two models. Partial least squares (a) and ensemble partial least squares (b) are displayed. 25–75% confidence (box) and 5–95% confidence intervals (whiskers) are marked. Groups with statistically different means (P < 0.05) via ANOVA with Tukey’s multiple comparisons adjustment are marked with different letters