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add license file and adjust the license information in the files accordingly
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‎LICENSE

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‎README.md

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# Recurrence plot & Quantification #
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# Recurrence plot & Quantification #
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Simple MATLAB functions for calculating recurrence plots and recurrence quantification.
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## Functions
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### embed
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## Application
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Trauth et al, Classifying past climate change in the Chew Bahir basin, southern Ethiopia, using recurrence quantification analysis, *Climate Dynamics*, in press, 2019
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Part of this code was used in the study
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* M. H. Trauth, A. Asrat, W. Duesing, V. Foerster, K. H. Kraemer, N. Marwan, M. A. Maslin, F. Schaebitz: _Classifying past climate change in the Chew Bahir basin, southern Ethiopia, using recurrence quantification analysis_, Climate Dynamics, 53(5), 2557–2572 (2019). DOI:[10.1007/s00382-019-04641-3](https://doi.org/10.1007/s00382-019-04641-3)
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## How to cite
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* Zenodo?
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## How to cite
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* Zenodo link
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## Background
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http://www.recurrence-plot.tk/
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read more about recurrence plot analysis at
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<http://www.recurrence-plot.tk/>
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## License
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(see LICENSE file)
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Copyright 2016-2020,
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Potsdam Institute for Climate Impact Research (PIK),
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Institute of Geosciences, University of Potsdam,
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K. Hauke Kraemer, Norbert Marwan, Martin H. Trauth

‎embed.m

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% Norbert Marwan
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% http://www.pik-potsdam.de
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%
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% This program is free software; you can redistribute it and/or
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% modify it under the terms of the GNU General Public License
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% as published by the Free Software Foundation; either version 2
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% of the License, or any later version.
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% This program is free software: you can redistribute it and/or modify it under the terms of the
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% GNU Affero General Public License as published by the Free Software Foundation, either
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% version 3 of the License, or (at your option) any later version.
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% This program is distributed in the hope that it will be useful, but WITHOUT ANY
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% WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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% FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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% details.
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% You should have received a copy of the GNU Affero General Public License along with this
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% program. If not, see <http://www.gnu.org/licenses/>.
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%% check input and output arguments
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narginchk(1,3)

‎example_isoRP.m

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%% MATLAB Example for calculating perpendicular and iso-directional RP
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% Copyright (c) 2016-2019
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% Potsdam Institute for Climate Impact Research, Germany
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% Institute of Geosciences, University of Potsdam, Germany
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% Norbert Marwan, K. Hauke Kraemer
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% http://www.pik-potsdam.de
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%
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% This program is free software: you can redistribute it and/or modify it under the terms of the
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% GNU Affero General Public License as published by the Free Software Foundation, either
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% version 3 of the License, or (at your option) any later version.
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% This program is distributed in the hope that it will be useful, but WITHOUT ANY
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% WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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% FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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% details.
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% You should have received a copy of the GNU Affero General Public License along with this
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% program. If not, see <http://www.gnu.org/licenses/>.
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%% calculate example system Lorenz
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[t x] = ode45('lorenz',[0 200],rand(1,3));
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%x = resample(x(10300:11000,:),4,1);

‎example_script.m

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% Copyright (c) 2016-2019
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% Potsdam Institute for Climate Impact Research, Germany
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% Institute of Geosciences, University of Potsdam, Germany
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% Norbert Marwan, Hauke Kraemer, Martin H. Trauth
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% http://www.pik-potsdam.de and http://www.geo.uni-potsdam.de
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% Norbert Marwan, K. Hauke Kraemer, Martin H. Trauth
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% http://www.pik-potsdam.de
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%
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% This program is free software; you can redistribute it and/or modify it
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% under the terms of the GNU General Public License as published by the
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% Free Software Foundation; either version 2 of the License, or any later
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% version.
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% This program is free software: you can redistribute it and/or modify it under the terms of the
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% GNU Affero General Public License as published by the Free Software Foundation, either
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% version 3 of the License, or (at your option) any later version.
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% This program is distributed in the hope that it will be useful, but WITHOUT ANY
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% WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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% FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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% details.
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% You should have received a copy of the GNU Affero General Public License along with this
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% program. If not, see <http://www.gnu.org/licenses/>.
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%%
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% Clear workspace, clear Command Window, close all Figure windows.

‎lorenz.m

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% r = 210;
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% [t x] = ode45('lorenz',[0 200],rand(1,3),[],r);
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% Copyright (c) 2016-2019
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% Potsdam Institute for Climate Impact Research, Germany
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% Institute of Geosciences, University of Potsdam, Germany
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% Norbert Marwan, K. Hauke Kraemer
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% http://www.pik-potsdam.de
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%
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% This program is free software: you can redistribute it and/or modify it under the terms of the
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% GNU Affero General Public License as published by the Free Software Foundation, either
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% version 3 of the License, or (at your option) any later version.
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% This program is distributed in the hope that it will be useful, but WITHOUT ANY
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% WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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% FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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% details.
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% You should have received a copy of the GNU Affero General Public License along with this
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% program. If not, see <http://www.gnu.org/licenses/>.
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% parameter r
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if nargin<4
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r=28;

‎rp.m

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% Copyright (c) 2016-2019
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% Potsdam Institute for Climate Impact Research, Germany
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% Institute of Geosciences, University of Potsdam, Germany
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% Norbert Marwan, Hauke Kraemer
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% Norbert Marwan, K. Hauke Kraemer
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% http://www.pik-potsdam.de
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%
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% This program is free software; you can redistribute it and/or
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% modify it under the terms of the GNU General Public License
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% as published by the Free Software Foundation; either version 2
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% of the License, or any later version.
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% This program is free software: you can redistribute it and/or modify it under the terms of the
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% GNU Affero General Public License as published by the Free Software Foundation, either
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% version 3 of the License, or (at your option) any later version.
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% This program is distributed in the hope that it will be useful, but WITHOUT ANY
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% WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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% FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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% details.
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% You should have received a copy of the GNU Affero General Public License along with this
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% program. If not, see <http://www.gnu.org/licenses/>.
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%% check input

‎rp_iso.m

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%
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% R=RP_ISO(X,E,W,TAU) estimate tangential vector using time delay TAU.
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% Copyright (c) 2016-2019
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% Potsdam Institute for Climate Impact Research
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% K. Hauke Kraemer, Norbert Marwan
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% http://www.pik-potsdam.de
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%
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% This program is free software: you can redistribute it and/or modify it under the terms of the
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% GNU Affero General Public License as published by the Free Software Foundation, either
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% version 3 of the License, or (at your option) any later version.
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% This program is distributed in the hope that it will be useful, but WITHOUT ANY
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% WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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% FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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% details.
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% You should have received a copy of the GNU Affero General Public License along with this
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% program. If not, see <http://www.gnu.org/licenses/>.
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%% check input
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narginchk(1,5)

‎rp_perp.m

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%
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% R=RP_PERP(X,E,W,TAU) estimate tangential vector using time delay TAU.
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% Copyright (c) 2016-2019
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% Potsdam Institute for Climate Impact Research
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% K. Hauke Kraemer, Norbert Marwan
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% http://www.pik-potsdam.de
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%
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% This program is free software: you can redistribute it and/or modify it under the terms of the
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% GNU Affero General Public License as published by the Free Software Foundation, either
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% version 3 of the License, or (at your option) any later version.
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% This program is distributed in the hope that it will be useful, but WITHOUT ANY
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% WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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% FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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% details.
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% You should have received a copy of the GNU Affero General Public License along with this
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% program. If not, see <http://www.gnu.org/licenses/>.
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%% check input
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narginchk(1,5)
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nargoutchk(0,3)

‎rqa.m

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% Copyright (c) 2016-2019
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% Potsdam Institute for Climate Impact Research, Germany
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% Institute of Geosciences, University of Potsdam, Germany
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% Norbert Marwan, Hauke Kraemer
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% Norbert Marwan, K. Hauke Kraemer
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% http://www.pik-potsdam.de
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%
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% This program is free software; you can redistribute it and/or
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% modify it under the terms of the GNU General Public License
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% as published by the Free Software Foundation; either version 2
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% of the License, or any later version.
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% This program is free software: you can redistribute it and/or modify it under the terms of the
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% GNU Affero General Public License as published by the Free Software Foundation, either
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% version 3 of the License, or (at your option) any later version.
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% This program is distributed in the hope that it will be useful, but WITHOUT ANY
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% WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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% FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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% details.
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% You should have received a copy of the GNU Affero General Public License along with this
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% program. If not, see <http://www.gnu.org/licenses/>.
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%% check input
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narginchk(1,3)

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