exportPattern("^[[:alpha:]]+")
import(lavaan)
import(nlme)
importFrom("ggm", "isAcyclic")
importFrom("graphics", "abline", "lines", "plot", "arrows", "par", "legend")
importFrom("lme4", "findbars", "nobars", "lmer", "glmer", "lmerControl", "glmerControl")
importFrom("methods", "as")
importFrom("pbkrtest", "get_ddf_Lb")
importFrom("stats", "AIC", "aggregate", "as.formula", "cor",
           "drop.terms", "family", "formula", "gaussian",
           "glm.control", "lm", "model.matrix", "na.omit", "pchisq",
           "pt", "reformulate", "terms", "var")
importFrom("utils", "setTxtProgressBar", "txtProgressBar")