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function num = struct2latex(data,xname,downsample,filtertype,filename,postfix,options)
%------------------------------------------------
%2010/09/14 version 1.0
%num = struct2latex(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.
%struct2latex is 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)
%filtertype ...using filtering data {'none','MinMax','Hull'}(optional, default = 'none')
%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
% 2012/08/03 filters added
% 2013/06/26 data consistency check added
% 2013/08/09 data consistency check for x-vector dimension added
% bugfixing of mapping of column-vectors
% bugfixing of fnamesExcludelist
%
% 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
allfnames = fieldnames(data);
if(nargin<2)
[xnamenum,selected] = listdlg('PromptString','Choose x-Axis:','SelectionMode','single','ListString',allfnames(1:end));
if (selected==0)
error('No x-Axis chosen!');
end
xname = allfnames{xnamenum};
end
%exclude special fields from export
fnamesExcludelist = {xname,'dSPACESettings'};
kk = 1;
for ii = 1:length(allfnames)
if(~strcmp(allfnames{ii},fnamesExcludelist))
fnames{kk} = allfnames{ii};
kk = kk+1;
end
end
% check x data consistency and
% convert to column vectors if necessary
[nor,noc] = size(data.(xname));
if(nor>1)
if(noc>1)
error('struct2latex supports only vectors as x-vectors');
else
data.(xname) = data.(xname)';
end
end
% check y data consistency and
% convert to column vectors if necessary
for ii = 1:length(fnames)
[nor,noc] = size(data.(fnames{ii}));
if(nor>1)
if(noc>1)
error('struct2latex supports only vectors as y-vectors');
else
data.(fnames{ii}) = data.(fnames{ii})';
end
end
if(length(data.(xname))~=length(data.(fnames{ii})))
error(['Error in ' fnames{ii} '! Only vectors of the same length are supported!']);
end
end
%downsample
if(nargin<3)
downsample = 1;
end
idx = 1:downsample:length(data.(xname));
%downsample
if(nargin<4)
filtertype = 'none';
end
%postfix
if(nargin<6)
postfix = '';
end
if(length(idx)>5000)
buttonname = questdlg('Warning! Number of points exceeds 5000! 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 = str2num(answer{1});
idx = 1:downsample:length(data.(xname));
case 'No'
warning('number of points exceeds 5000');
end
end
% get x-data
xbuffer = data.(xname);
[nor,noc] = size(xbuffer);
if(nor>1)
if(noc>1)
error('struct2latex supports only vectors');
else
xbuffer = xbuffer';
end
end
% get y-data
latexfnames = genlatexnames(fnames);
for ii = 1:length(fnames)
ybuffer = data.(fnames{ii});
switch(filtertype)
case{'none'}
ydata = ybuffer(idx);
xdata = xbuffer(idx);
case{'MinMax'}
[xdata,ydata] = LatexFilterMinMax(xbuffer,ybuffer,floor(length(idx)/2));
case{'Hull'}
[xdata,ydata] = LatexFilterHull(xbuffer,ybuffer,floor(length(idx)/2));
otherwise
ydata = ybuffer(idx);
xdata = xbuffer(idx);
end
texdata(ii).x = xdata;
texdata(ii).y = ydata;
texdata(ii).ident = [latexfnames{ii} postfix];
end
if(nargin<4)
[texname,texpname] = uiputfile('*.tex','Save Tex-File as ...','data');
filename = [texpname texname(1:end-4)];
end
if(ischar(filename))
if(exist('options','var'))
export2latex(texdata,filename,options);
else
export2latex(texdata,filename);
end
else
error('no savefile chosen or illegal name');
end
% output info
num = length(fnames);
disp([num2str(length(fnames)) ' data sets exported.']);
disp(['x-data name:']);
disp(['''' xname '''']);
disp(['y-data name:']);
for ii=1:length(latexfnames)
fprintf(['''' latexfnames{ii} '''' ' ']);
end
fprintf(['\n']);
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