gam.check().pffr.check(b, old.style = FALSE, type = c("deviance", "pearson",
"response"), k.sample = 5000, k.rep = 200, rep = 0, level = 0.9,
rl.col = 2, rep.col = "gray80", ...)pffr-objectTRUE.residuals.gam, used in
all plots.qq.gam when old.style is FALSE.qq.gam when old.style is FALSE.qq.gam when old.style is FALSE.qq.gam when old.style is FALSE.