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diff --git a/graphics/pstricks/contrib/numericplots/MatlabFunctions/struct2pst.m b/graphics/pstricks/contrib/numericplots/MatlabFunctions/struct2pst.m
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+++ b/graphics/pstricks/contrib/numericplots/MatlabFunctions/struct2pst.m
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+function num = struct2pst(data,xname,downsample,filename,postfix,options)
+%------------------------------------------------
+%2011/09/08 version 1.0
+%num = struct2pst(data,xname,downsample,filename,postfix,options)
+%Function to export a matlabstruct to a tex-file for using NumericPlots.
+%xname, downsample, filename, postfix and options are optional parameters.
+%struct2pstis based on the function export2latex.
+%------------------------------------------------
+%output:
+%num ...number of y-data exported
+%input:
+%data ...datastruct
+%xname ...name of the x-Axis
+%downsample ...downsampling factor (optional, default = 1)
+%filename ...name of the tex-file (optional, default io)
+%postfix ...postfix for fieldnames in the tex-file (optional, default '')
+%options ...options for export2latex (optional)
+%
+
+%author: Alexander Michel
+% date: 2010/08/09
+% changed by Alexander Michel:
+% 2010/09/14 mapping of column-vectors
+% 2010/09/14 postfix option added
+%
+% Copyright 2010 Thomas König, Alexander Michel
+%
+% This file is part of NumericPlots.
+%
+% NumericPlots 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
+% any later version.
+%
+% NumericPlots 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 NumericPlots. If not, see <http://www.gnu.org/licenses/>.
+
+
+%choose x-Axis
+fnames = fieldnames(data);
+if(nargin<2)
+ [xnamenum,selected] = listdlg('PromptString','Choose x-Axis:','SelectionMode','single','ListString',fnames(1:end));
+ if (selected==0)
+ error('No x-Axis chosen!');
+ end
+ xname = fnames{xnamenum};
+end
+
+%downsample
+if(nargin<3)
+ downsample = 1;
+end
+idx = 1:downsample:length(data.(xname));
+
+%postfix
+if(nargin<5)
+ postfix = '';
+end
+
+if(length(idx)>5000)
+ buttonname = questdlg(['Warning! Number of points exceeds 5000 and is equal to ' num2str(length(idx)) '! It is recommended to increase the downsampling factor!'],'Increase the downsampling factor?','Yes','No','Yes');
+ switch buttonname
+ case 'Yes'
+ dlgoptions.Resize='on';
+ dlgoptions.WindowStyle='normal';
+ dlgoptions.Interpreter='tex';
+ defans{1} = num2str(ceil(length(data.(xname))/5000));
+ answer = inputdlg('Downsampling factor','Input Downsampling factor',1,defans,dlgoptions);
+ downsample = str2double(answer{1});
+ idx = 1:downsample:length(data.(xname));
+ case 'No'
+ warning(['number of points exceeds 5000 and is equal to ' num2str(length(idx))]);
+ end
+end
+
+
+% get x-data
+xdata = data.(xname);
+[nor noc] = size(xdata);
+if(nor>1)
+ if(noc>1)
+ error('struct2latex supports only vectors');
+ else
+ xdata = xdata';
+ end
+end
+
+% get y-data
+jj = 1;
+for ii = 1:length(fnames)
+ if(strcmp(xname,fnames{ii})~=1 && strcmp('dSPACESettings',fnames{ii})~=1)
+ texdata(jj).x = xdata(idx);
+ buffer = data.(fnames{ii});
+ [nor noc] = size(buffer);
+ if(nor>1)
+ if(noc>1)
+ error('struct2latex supports only vectors');
+ else
+ buffer = buffer';
+ end
+ end
+ texdata(jj).y = buffer(idx);
+ texdata(jj).ident = [fnames{ii} postfix];
+ jj = jj+1;
+ end
+end
+
+if(nargin<4)
+ [texname texpname] = uiputfile('*.tex','Save Tex-File as ...','data');
+ filename = [texpname texname(1:end-4)];
+end
+if(isstr(filename))
+ if(exist('options','var'))
+ export2pst(texdata,filename,options);
+ else
+ export2pst(texdata,filename);
+ end
+else
+ error('no savefile chosen or illegal name');
+end
+
+num = jj-1; \ No newline at end of file