export(applyDiff, unirootTest, EM.imputation, dlsem, lagPlot, isIndep, edgeCoeff, pathAnal, fitIndices)

S3method(print, dlsem)
S3method(summary, dlsem)
S3method(plot, dlsem)
S3method(fitted, dlsem)
S3method(residuals, dlsem)
S3method(predict, dlsem)
S3method(extractAIC, dlsem)

import(Matrix, graph, gRbase, Rgraphviz)
importFrom("grDevices", "dev.off", "pdf")
importFrom("graphics", "abline", "axis", "box", "grid", "legend","mtext", "par", "points", "polygon")
importFrom("methods", "new")
importFrom("stats", "coefficients", "cov", "extractAIC", "formula","lm", "model.matrix", "na.omit",
  "pnorm", "predict", "qnorm", "quantile", "residuals", "rnorm", "smooth.spline", "sd", "var", "vcov",
  "anova", "deviance", "approx", "embed")
importFrom("utils", "flush.console")