Commit 1fa923a3 by Stéphane Adjemian

### Added method firstobservedperiod.

```Returns the first period without NaNs.

Closes #15```
parent f3544c6a
 function d = firstobservedperiod(o) % --*-- Unitary tests --*-- % Returns the first period where all the variables are observed (first period without NaNs). % % INPUTS % - o [dseries] with N variables and T periods. % % OUTPUTS % - b [dates] First period where the N variables are observed (without NaNs). % Copyright (C) 2016 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 . b = ~isnan(o); c = find(prod(b, 2)); d = o.firstdate+(c(1)-1); %@test:1 %\$ try %\$ ts = dseries([NaN, NaN; NaN, 1; 2, 2; 3, 3; 4, NaN; 5, 5]); %\$ dd = ts.firstobservedperiod(); %\$ t(1) = true; %\$ catch %\$ t(1) = false; %\$ end %\$ %\$ if t(1) %\$ t(2) = isequal(dd, dates('3Y')); %\$ end %\$ %\$ T = all(t); %@eof:1 %@test:2 %\$ try %\$ ts = dseries([0, 0; NaN, 1; 2, 2; 3, 3; 4, NaN; 5, 5]); %\$ dd = ts.firstobservedperiod(); %\$ t(1) = true; %\$ catch %\$ t(1) = false; %\$ end %\$ %\$ if t(1) %\$ t(2) = isequal(dd, dates('1Y')); %\$ end %\$ %\$ T = all(t); %@eof:2
 function b = isnan(o) % Returns an array of logicals (true/false). Element (t,i) is true iff the i-th variable at % period number t is not a NaN. % % INPUTS % - o [dseries] with N variables and T periods. % % OUTPUTS % - b [logical] T*N array of logicals. % Copyright (C) 2016 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 . b = isnan(o.data); \ No newline at end of file
 ... ... @@ -90,7 +90,7 @@ switch S(1).type case 'freq' % Returns an integer characterizing the data frequency (1, 4, 12 or 52) B = A.dates.freq; case {'lag','lead','hptrend','hpcycle','chain','detrend','exist','mean','std','center'} % Methods with less than two arguments. case {'lag','lead','hptrend','hpcycle','chain','detrend','exist','mean','std','center','firstobservedperiod'} % Methods with less than two arguments. if length(S)>1 && isequal(S(2).type,'()') if isempty(S(2).subs) B = feval(S(1).subs,A); ... ...
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