FitAQ

Abstract

Yet another R package to analyse the relationship between photosynthetic assimilation rate and light (light response curve). Fits a non-rectangular hyperbola of the form A ~ ((phi * Q + Amax - sqrt((phi * Q + Amax)^2 - 4 * theta * phi * Q * Amax)). A = assimilation rate, Q = PPFD, light level, phi = initial slope, theta = curvature, and Rd = respiration