ts, for now). First, the effect of covariates over lambda can be ‘global’, meaning that each covariate has a global parameter affecting lambda. This is formulated as</p>
<p><span class="math inline">\(\lambda (1 + \sum_{k=1}^{s} \theta_k c_k)\)</span></p>
<p>where <span class="math inline">\(s\)</span> is the number of environmental covariates, <span class="math inline">\(c_k\)</span> is the observed value of the i-th covariate and <span class="math inline">\(\theta_k\)</span> is the ‘lambda_cov’ pa