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)