*! Source code of --ltimbimata--



*! 
*! mz_decalen.mata
*! version 1.0.0, Diallo Ibrahima Amadou, 25aug2008
version 10.0
mata:

transmorphic matrix mz_decalen(transmorphic matrix x, real scalar n)
{
            transmorphic matrix u, v, res
            real scalar k
            k = abs(n)
            u = J(k, cols(x), missingof(x))
            if (n>=0) {
                       v = mz_trimrows(x,0,k)
                       res  = (u\v)
            }
            else {
                  v = mz_trimrows(x,k,0)
                  res  = (v\u)
            }
            return(res)
}

end



*! 
*! mz_pancolshape.mata
*! version 1.0.0, Diallo Ibrahima Amadou, 25aug2008
version 10.0
mata:

transmorphic matrix mz_pancolshape(transmorphic matrix W, real scalar c, string
>  scalar f)
{
            transmorphic matrix res
            transmorphic rowvector v, s
            real rowvector R
            real scalar i, j, l, N
            N = cols(W)/c
            if ((N-trunc(N))!=0) {
                                  _error(3200,"You have inconformable number of
>  panels")
            }
            if (f=="CK") {
                          v = J(1, c, missingof(W))
                          for(i=1; i<=N; i++) {
                                               v = (v\W[|1,(1+(i-1)*c)\.,(i*c)|
> ])
                          }
                          res = v[(2::rows(v)),.]
            }
            else if (f=="KC") {
                               s = J(1, c, missingof(W))
                               for (j=1; j<=N; j++) {
                                                     R = J(1, cols(W), 0)
                                                     for (l=1; l<=c; l++) {
                                                                           R[j+
> (l-1)*N] = 1
                                                     }
                                                     s = (s\select(W,R))
                               }
                               res = s[(2::rows(s)),.]
            }
            return(res)
}

end



*! 
*! mz_panrowshape.mata
*! version 1.0.0, Diallo Ibrahima Amadou, 25aug2008
version 10.0
mata:

transmorphic matrix mz_panrowshape(transmorphic matrix V, real scalar idcol, st
> ring scalar f, | real rowvector d)
{
            transmorphic matrix  X, VP, VPP, res, w
            transmorphic colvector Q
            real matrix info
            real rowvector s, P, PP, R
            real scalar T, N, k, i, j, a, l, m
            P = J(1, cols(V), 1)
            Q = J(rows(V), 1, missingof(V))
            if (args()==4) {
                            for (i=1; i<=cols(d); i++) {
                                                        a = .
                                                        a = d[i]
                                                        if (a==idcol) {
                                                                       Q = V[.,
> idcol]
                                                        }
                                                        P[a] = 0
                            }
                            k = cols(V)-cols(d)
            }
            else {
                  k = cols(V)
            }
            if (allof(Q,missingof(Q))) {
                                        VP = V
                                        VPP = select(VP,P)
                                        info = panelsetup(VPP, idcol, 2, 0)
                                        s = panelstats(info)
                                        N = s[1]; T = s[4]
            }
            else {
                  VP = select(V,P)
                  VPP = (Q,VP)
                  info = panelsetup(VPP, 1, 2, 0)
                  s = panelstats(info)
                  N = s[1]; T = s[4]
                  PP = J(1, cols(VPP), 1)
                  PP[1] = 0
                  VPP = select(VPP,PP)
            }
            X = J(T,N*k, missingof(V))
            for (j=1; j<=N; j++) {
                                  X[|1,(1+(j-1)*k)\.,(j*k)|] = panelsubmatrix(V
> PP, j, info)
            }
            if (f=="CK") {
                          res = X
            }
            else if (f=="KC") { 
                               w = J(rows(X), 1, missingof(X))
                               for (l=1; l<=k; l++) {
                                                     R = J(1, cols(X), 0)
                                                     for (m=1; m<=N; m++) {
                                                                           R[l+
> (m-1)*k] = 1
                                                     }
                               w = (w,select(X,R))
                               }
                               res = w[.,(2.. cols(w))]
            }
            return(res)
}

end



*! 
*! mz_reshape.mata
*! version 1.0.0, Diallo Ibrahima Amadou, 25aug2008
version 10.0
mata:

transmorphic matrix mz_reshape(transmorphic matrix x, real scalar m, real scala
> r n)
{
            transmorphic matrix res
            transmorphic rowvector v, q, w
            real scalar i
            v = vec(x')'
            w = mz_ajvec(v, m*n)
            q = J(1, n, missingof(x))
            for (i=1; i<=m; i++) {
                                  q = (q\w[|1+(i-1)*n\i*n|])
            }
            res = q[(2::rows(q)),.]
            return(res)
}

transmorphic rowvector mz_ajvec(transmorphic rowvector x, real scalar d)
{
            transmorphic rowvector u, v
            real scalar i, s
            u = J(1, cols(x), missingof(x))
            if (d<=cols(x)) {
                             v = x[|1\d|]
            }
            else {
                  s = ceil(d/cols(x))
                  for (i=1; i<=s; i++) {
                                        u = (u,x)
                  }
                  v = u[|(cols(x)+1)\(cols(x)+d)|]
            }
            return(v)
}

end



*! 
*! mz_stdc.mata
*! version 1.0.0, Diallo Ibrahima Amadou, 25aug2008
version 10.0
mata:

real colvector  mz_stdc(real matrix x)
{
                real matrix res
                real scalar N
                N = rows(x)
                res = sqrt((1/(N-1)):*colsum((x-mz_reshape(mean(x), rows(x), co
> ls(x))):^2)')
                return(res)
}

end



*! 
*! mz_trimrows.mata
*! version 1.0.0, Diallo Ibrahima Amadou, 25aug2008
version 10.0
mata:

transmorphic matrix mz_trimrows(transmorphic matrix x, real scalar p,  real sca
> lar d)
{
            transmorphic matrix res
            res = x[((p+1)::(rows(x)-d)),.]
            return(res)
}

end