importFrom("stats", "coef", "cor", "lm", "model.frame", "model.matrix", "model.response", "as.formula")

importFrom("stats", "chisq.test", "constrOptim", "dnorm", "integrate", "na.omit", "pnorm", "qnorm", "sd")

importFrom("stats", "anova", "cor", "cutree", "lm","p.adjust","phyper","as.dist","median","predict","sd","t.test","wilcox.test","dist");

export(N_to_design, design_to_N,NNPmat, Cmat, A_eff, D_eff, ibd,A_eff_tc,btib,ibdtvc)

export(N_to_design, design_to_N, NNPmat, C, A_eff, D_eff, ibd, A_eff_tc, btib, ibdtvc, is.proper,is.equir,is.connected,is.vb,is.orthogonal,aov.ibd)

export(N_to_design, design_to_N, Cmatrix, A_eff, D_eff, ibd, bibd, A_eff_tc, btib, ibdtvc, is.proper, is.equir, is.connected, is.vb,is.orthogonal,aov.ibd, is.wholenumber, ccmat_LP, ccmat, A_eff.NNP, check.validity.NNP, interchange.NNP, LIP, ibdgen, do.exist.NBIB, NLIP, btib1, check.orthogonality)
import(lpSolve, MASS, car, lsmeans,multcompView)

export(N_to_design, design_to_N, Cmatrix, A_eff, D_eff, ibd, bibd, btib, ibdtvc, is.proper, is.equir, is.connected, is.vb,is.orthogonal,aov.ibd, is.wholenumber, ccmat_LP, ccmat, A_eff.NNP, check.validity.NNP, interchange.NNP, LIP, ibdgen, do.exist.NBIB, NLIP, btib1, check.orthogonality)

export(N_to_design, design_to_N, Cmatrix, A_eff, D_eff, ibd, bibd, btib, ibdtvc, is.proper, is.equir, is.connected, is.vb,is.orthogonal,aov.ibd, is.wholenumber, ccmat_LP, ccmat, A_eff.NNP, check.validity.NNP, interchange.NNP, LIP, ibdgen, do.exist.NBIB, NLIP, btib1, check.orthogonality,btibgen,g,gts)

import(tools, stats, methods, graphics, utils)

# Copyright (c) 2010, 2014, IBM Corp. All rights reserved.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# This program is distributed in the hope that it will be useful,
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"dim", "NROW", "NCOL", "length", "head",  "names",
"mean","min","max", "colnames", "sd", "var","cov", "cor", "summary","as.vector",