Most of the outdoor models also had very low marginal coefficients of determination (Rm), showing that much of the variation was explained by differences between individual plants and not by temperature (Table 2).
Additional P-values for the t-values in LMM models were calculated using the package lmerTest (Kuznetsova et al. 2014) and the conditional and marginal coefficients of determination (Rc and Rm) for the LMM models were calculated with the function r.squaredGLMM in the package MuMIn (Barton 2015).
The age of the farmer returned a positive and significant marginal coefficient suggesting that a percentage increase in age increases the propensity to adopt improved varieties by 5percentt.
Thus, we report a marginal effect coefficient of 0.03 suggesting that the probability of an educated household choosing an energy-efficient light bulb for lighting is 3% higher than an uneducated household.
Also, as speculated, the simple approximation (described by equation (4)) of marginal coefficients from the corresponding conditional ones (RE-approx) also results in good calibration in all cases.
Marginal coefficients are reported as they are easier to interpret in the case of non-linear models.
3, 14 If the proportion of patients at the upper ceiling is small the marginal coefficients from the random effects GLS should suffice.
Higher regeneration temperature (60 °C) would bring a reduced marginal benefit in terms of latent coefficient of performance (COPlatent).
The results indicate that while the wear rate of AlSiC decreases with increasing fraction of SiC, the corresponding effect on coefficient of friction is only marginal.
