diff --git a/src/initialize_mdbnomics.m b/src/initialize_mdbnomics.m
index 34ef0277e844046c72b3da43a1d2b1cdc67f9d31..a0ff859e41e95ebd26e67d9807cbe06e4b6f393b 100644
--- a/src/initialize_mdbnomics.m
+++ b/src/initialize_mdbnomics.m
@@ -28,22 +28,6 @@ if ~exist('OCTAVE_VERSION', 'builtin') || ~exist('contains','builtin')
     p{end+1} = 'missing/contains';
 end
 
-if ~exist('get_file_extension','file')
-    p{end+1} = 'missing/get_cells_id';
-end
-
-if ~exist('get_file_extension','file')
-    p{end+1} = 'missing/get_file_extension';
-end
-
-if ~exist('iscolumn','builtin')
-    p{end+1} = 'missing/iscolumn';
-end
-
-if ~exist('isint','file')
-    p{end+1} = 'missing/isint';
-end
-
 if ~exist('isoctave','file')
     p{end+1} = 'missing/isoctave';
 end
@@ -52,14 +36,6 @@ if ~exist('matlab_ver_less_than','file')
     p{end+1} = 'missing/matlab_ver_less_than';
 end
 
-if ~exist('OCTAVE_VERSION', 'builtin') && ~exist('strsplit','file')
-    p{end+1} = 'missing/strsplit';
-end
-
-if ~exist('OCTAVE_VERSION', 'builtin') && ~exist('strjoin','file')
-    p{end+1} = 'missing/strjoin';
-end
-
 if exist('OCTAVE_VERSION', 'builtin') && ~exist('user_has_octave_forge_package','file')
     p{end+1} = 'missing/user_has_octave_forge_package';
 end
diff --git a/src/missing/get_cells_id/get_cells_id.m b/src/missing/get_cells_id/get_cells_id.m
deleted file mode 100644
index c11c8a0856b159697ffc179fc8f4925b31275cfe..0000000000000000000000000000000000000000
--- a/src/missing/get_cells_id/get_cells_id.m
+++ /dev/null
@@ -1,22 +0,0 @@
-function [B,C] = get_cells_id(str,sep)
-
-% Copyright (C) 2012-2017 Dynare Team
-%
-% This file is part of Dynare.
-%
-% Dynare 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
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-sep_locations = transpose(strfind(str,sep));
-B = [1; sep_locations+1];
-C = [sep_locations-1; length(str)];
\ No newline at end of file
diff --git a/src/missing/get_file_extension/get_file_extension.m b/src/missing/get_file_extension/get_file_extension.m
deleted file mode 100644
index dad9ee0ac9157fbcde933064970cc98ae0e9a9bd..0000000000000000000000000000000000000000
--- a/src/missing/get_file_extension/get_file_extension.m
+++ /dev/null
@@ -1,36 +0,0 @@
-function ext = get_file_extension(file)
-
-% returns the extension of a file.
-%
-% INPUTS
-%  o file      string, name of the file
-%
-% OUTPUTS
-%  o ext       string, extension.
-%
-% REMARKS
-%  If the provided file name has no extension, the routine will return an empty array.
-
-% Copyright (C) 2013-2017 Dynare Team
-%
-% This file is part of Dynare.
-%
-% Dynare 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
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-[dir, fname, ext] = fileparts(file);
-
-if ~isempty(ext)
-    % Removes the leading dot.
-    ext = ext(2:end);
-end
\ No newline at end of file
diff --git a/src/missing/iscolumn/iscolumn.m b/src/missing/iscolumn/iscolumn.m
deleted file mode 100644
index 0264efe198287e63a59ace53cd068b8376ceefda..0000000000000000000000000000000000000000
--- a/src/missing/iscolumn/iscolumn.m
+++ /dev/null
@@ -1,20 +0,0 @@
-function r = iscolumn(V)
-% Copyright (C) 2018 Dynare Team
-%
-% This file is part of Dynare.
-%
-% Dynare 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
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-sz = size(V);
-r = (length(sz) == 2) && (sz(2) == 1);
diff --git a/src/missing/isint/isint.m b/src/missing/isint/isint.m
deleted file mode 100644
index f01a01667e5b37170b7811df1b1634b91165b745..0000000000000000000000000000000000000000
--- a/src/missing/isint/isint.m
+++ /dev/null
@@ -1,129 +0,0 @@
-function [l,c,d] = isint(a) % --*-- Unitary tests --*--
-
-%  This function tests if the input argument is an integer.
-%
-%  INPUT
-%  - a    [double]   m*n matrix.
-%
-%  OUTPUT
-%  - l    [logical]  m*n matrix of true and false (1 and 0). l(i,j)=true if a(i,j) is an integer.
-%  - c    [integer]  p*1 vector of indices pointing to the integer elements of a.
-%  - d    [integer]  q*1 vector of indices pointing to the non integer elements of a.
-%
-%  REMARKS
-%  p+q is equal to the product of m by n.
-
-% Copyright (C) 2009-2017 Dynare Team
-%
-% This code 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
-% (at your option) any later version.
-%
-% Dynare dates submodule is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-if ~isnumeric(a)
-    l = false;
-    if nargout>1
-        c = [];
-        d = [];
-    end
-    return
-end
-
-l = abs(fix(a)-a)<1e-15;
-
-if nargout>1
-    c = find(l==true);
-    d = find(l==false);
-end
-
-%@test:1
-%$ a = 1938;
-%$ try
-%$     boolean = isint(a);
-%$     t(1) = true;
-%$ catch
-%$     t(1) = false;
-%$ end
-%$
-%$ if t(1)
-%$     t(2) = dassert(boolean, true);
-%$ end
-%$
-%$ T = all(t);
-%@eof:1
-
-%@test:2
-%$ a = pi;
-%$ try
-%$     boolean = isint(a);
-%$     t(1) = true;
-%$ catch
-%$     t(1) = false;
-%$ end
-%$
-%$ if t(1)
-%$     t(2) = dassert(boolean, false);
-%$ end
-%$
-%$ T = all(t);
-%@eof:2
-
-%@test:3
-%$ a = '1';
-%$ try
-%$     boolean = isint(a);
-%$     t(1) = true;
-%$ catch
-%$     t(1) = false;
-%$ end
-%$
-%$ if t(1)
-%$     t(2) = dassert(boolean, false);
-%$ end
-%$
-%$ T = all(t);
-%@eof:3
-
-%@test:4
-%$ a = [1; 2; 3];
-%$ try
-%$     [boolean, iV, iF]  = isint(a);
-%$     t(1) = true;
-%$ catch
-%$     t(1) = false;
-%$ end
-%$
-%$ if t(1)
-%$     t(2) = dassert(all(boolean), true);
-%$     t(3) = dassert(isequal(iV, [1; 2; 3]), true);
-%$     t(4) = dassert(isempty(iF), true);
-%$ end
-%$
-%$ T = all(t);
-%@eof:4
-
-%@test:5
-%$ a = [1; pi; 3];
-%$ try
-%$     [boolean, iV, iF]  = isint(a);
-%$     t(1) = true;
-%$ catch
-%$     t(1) = false;
-%$ end
-%$
-%$ if t(1)
-%$     t(2) = dassert(all(boolean), false);
-%$     t(3) = dassert(isequal(iV, [1; 3]), true);
-%$     t(4) = dassert(isequal(iF, 2), true);
-%$ end
-%$
-%$ T = all(t);
-%@eof:5
\ No newline at end of file
diff --git a/src/missing/isrow/isrow.m b/src/missing/isrow/isrow.m
deleted file mode 100644
index ef53534ede0596453d55e1d7fc36ed66499816b4..0000000000000000000000000000000000000000
--- a/src/missing/isrow/isrow.m
+++ /dev/null
@@ -1,20 +0,0 @@
-function r = isrow(V)
-% Copyright (C) 2018 Dynare Team
-%
-% This file is part of Dynare.
-%
-% Dynare 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
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-sz = size(V);
-r = (length(sz) == 2) && (sz(1) == 1);
diff --git a/src/missing/strjoin/strjoin.m b/src/missing/strjoin/strjoin.m
deleted file mode 100644
index 666c5f83a3bf8f5d0c817da62e3f7d5b449bb650..0000000000000000000000000000000000000000
--- a/src/missing/strjoin/strjoin.m
+++ /dev/null
@@ -1,63 +0,0 @@
-function rval = strjoin (cstr, delimiter)
-
-% Adapted from Octave's implementation of strjoin
-%
-% Limitation: escaped characters (e.g. '\n') in delimiters will not be
-% interpreted as the characters they represent.
-
-% Copyright (C) 2013-2019 Ben Abbott
-% Copyright (C) 2007 Muthiah Annamalai
-% Copyright (C) 2019 Dynare Team
-%
-% This file is part of Dynare.
-%
-% Dynare 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
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-if nargin == 1
-    delimiter = ' ';
-elseif nargin < 1 || nargin > 2
-    error('strjoin: must have either one or two arguments')
-end
-if ~(iscellstr(cstr) && (ischar(delimiter) || iscellstr(delimiter)))
-    error('strjoin: first argument must be a cell array, second array either a char array or a cell array')
-end
-
-if numel(cstr) == 1
-    rval = cstr{1};
-    return;
-end
-
-if ischar(delimiter)
-                        % There is no equivalent to do_string_escapes in MATLAB
-                        %delimiter = do_string_escapes(delimiter);
-    delimiter = {delimiter};
-end
-
-num = numel(cstr);
-if numel(delimiter) == 1 && num > 1
-    delimiter = repmat(delimiter, 1, num);
-    delimiter(end) = {''};
-elseif num > 0 && numel(delimiter) ~= num - 1
-    error('strjoin: the number of delimiters does not match the number of strings');
-else
-    delimiter(end+1) = {''};
-end
-
-if num == 0
-    rval = '';
-else
-    tmp = [cstr(:).'; delimiter(:).'];
-    rval = [tmp{:}];
-end
-
diff --git a/src/missing/strsplit/private/ischarint.m b/src/missing/strsplit/private/ischarint.m
deleted file mode 100644
index d325015d4d05a60b063dbd6b17767041c4e02441..0000000000000000000000000000000000000000
--- a/src/missing/strsplit/private/ischarint.m
+++ /dev/null
@@ -1,27 +0,0 @@
-function l = ischarint(x)
-
-% Returns true if and only if char x represents an integer.
-
-% Copyright © 2018 DynareTeam
-%
-% This file is part of Dynare.
-%
-% Dynare 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
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-s = warning;
-warning off;
-
-l = isint(str2double(x));
-
-warning(s);
\ No newline at end of file
diff --git a/src/missing/strsplit/private/ischarnum.m b/src/missing/strsplit/private/ischarnum.m
deleted file mode 100644
index 57b7c7e8cd308c6e400b76f49b88b61fad83dad3..0000000000000000000000000000000000000000
--- a/src/missing/strsplit/private/ischarnum.m
+++ /dev/null
@@ -1,35 +0,0 @@
-function l = ischarnum(x)
-
-% Returns true if and only if char x represents a real number.
-
-% Copyright © 2018 DynareTeam
-%
-% This file is part of Dynare.
-%
-% Dynare 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
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-l = false;
-
-s = warning;
-warning off;
-
-number = str2double(x);
-
-warning(s);
-
-if ~isempty(number)
-    if isreal(number)
-        l = true;
-    end
-end
\ No newline at end of file
diff --git a/src/missing/strsplit/strsplit.m b/src/missing/strsplit/strsplit.m
deleted file mode 100644
index 926bb50f389c6a7bb95818f3005856cab2e853fb..0000000000000000000000000000000000000000
--- a/src/missing/strsplit/strsplit.m
+++ /dev/null
@@ -1,90 +0,0 @@
-function tok = strsplit(str, delimiters)
-
-% Splits a string into multiple terms.
-%
-% INPUTS
-% - str        [char]                String to be splitted.
-% - delimiters [char, cell(char)]    Delimiters.
-%
-% OUTPUTS
-% - tok        [cell(char)]          Terms.
-
-% Copyright © 2018 DynareTeam
-%
-% This file is part of Dynare.
-%
-% Dynare 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
-% (at your option) any later version.
-%
-% Dynare is distributed in the hope that it will be useful,
-% but WITHOUT ANY WARRANTY; without even the implied warranty of
-% 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.
-
-remove_empty = true;
-remove_numbers = false;
-
-% Check first input arguments
-assert(ischar(str) && ndims(str)==2 && size(str,1)<=1, 'The first arugment has to be a row char array!');
-
-% Set default value for second input arguments
-if nargin<2
-    delimiters = {' '};
-end
-
-% If second input argument is a char transform it into a sigleton cell of char
-if nargin>1
-    if ischar(delimiters)
-        assert(ndims(delimiters)==2 && size(delimiters,1)==1, 'The second input argument has to be be a char string!');
-        delimiters = {delimiters};
-    end
-end
-
-% Check that `delimiters` is a one dimensional cell
-assert(ndim(delimiters)<=1, 'The second input argument has to be a one dimensional cell array!')
-
-% Check that `delimiters` is a cell of row char arrays
-assert(all(cellfun(@ischar, delimiters)) && all(cellfun(@rows, delimiters)==1), 'The second input argument has to be a cell of row char arrays!')
-
-% If space is one of the delimiters obtain the index in `delimiters`
-idspace = strmatch(' ', delimiters);
-
-% Get the number of delimiters
-n = length(delimiters);
-
-% Remove unnecessary spaces
-delimiters(setdiff(1:n, idspace)) = strtrim(delimiters(setdiff(1:n, idspace)));
-
-% Join all the delimiters (strjoin is not available with matlab version less than R2013a)
-if n>1
-    delimiter = '';
-    for i=1:n
-        if isspace(delimiters{i})
-            delimiter = horzcat(delimiter, '\s');
-        else
-            delimiter = horzcat(delimiter, delimiters{i});
-        end
-        delimiter = horzcat(delimiter,'|');
-    end
-    delimiter = horzcat(delimiter, '\W');
-else
-    delimiter = delimiters{1};
-end
-
-% Get tokens
-tok = regexp(str, delimiter, 'split');
-
-if remove_empty
-    % Remove empty tokens
-    tok = tok(find(~cellfun(@isempty, tok)));
-end
-
-if remove_numbers
-    % Remove numbers
-    tok = tok(find(~cellfun(@ischarnum, tok)));
-end
\ No newline at end of file