tests/testthat/_snaps/quantile-residuals.md

In gratia: Graceful 'ggplot'-Based Graphics and Other Functions for GAMs Fitted Using 'mgcv'

quantile residuals works for a GAM and pit

Code
  head(quantile_residuals(m_gam, type = "pit", seed = 1), n = 10)
Output
   [1] 0.17316586 0.04283083 0.94379902 0.71976658 0.46129449 0.64269592
   [7] 0.53693208 0.06973594 0.02772852 0.42894804

quantile residuals works for a poisson GAM and quantile

Code
  head(quantile_residuals(b_pois, type = "quantile", seed = 1), n = 10)
Output
   [1]  1.9057123 -0.8627816  0.6520413  0.9163218  0.6258978  0.9575311
   [7]  0.3101725  1.0874592 -0.3150668 -1.2923274

quantile residuals fails correctly for an unsupported GAM

Code
  quantile_residuals(m_twlss, type = "quantile", seed = 1)
Condition
  Error in `do_quantile_residuals()`:
  ! Quantile residuals are not available for this family.

gratia documentation built on Feb. 7, 2026, 9:06 a.m.