R package sensiPhy. An implementation of sensitivity analysis in phylogenetic regression models, for both linear and logistic phylogenetic regressions. The package is an umbrella of statistical and graphical methods that estimate and report different types of uncertainty in PGLS models: (i) Sampling uncertainty (sample size; influential species and clades). (ii) Phylogenetic uncertainty. (iii) Data uncertainty (intraspecific variation and measurement error).