- Tue 03 September 2013
- misc
- Glen Berseth
I created some code in Octave/Matlab to generate latex table from matrix data. I created this because in my case I was tuning some data and algorithms for a paper I was writing and I loathed entering my data into the latex over and over in large tables.
The use just needs to supply a file descriptor, names for the table rows, column, the data matrix and if desired a wrapper to wrap the data entries from the matric in any specific formatting.
Example wrapper functions
function outstr = numWrapper(value)
outstr= strcat("\num{" , num2str (value), "}");
endfunction
function outstr = ccolWrapper(value)
outstr= strcat("\ccol{" , num2str (value), "}");
endfunction
This is the code used to generate the latex
%
% creates a latex style table from matrix data.
% wrapper is a function used to wrap the data in each cell
% can be used to apply more formatting in latex
%
% fid is the file pointer to the file to write to
% matrix is the data matrix that will be placed starting at row 1 column 1
% rowNames is a column vector of the string names to be inserted as the names for the rows
% size(rowNames,1) == size(columnNames,1)+1, i.e. the
% columnNames will be used to label each of the column in the data
% wrapper is a special function that will take your input data and wrap it with latex formatting
%
% Will look like
% latex table formatting
% columnNames[0] | columnNames[1] | columnNames[2] | columnNames[2] | ...
% rowNames[0] | matrix(0,0) | matrix(0,1) | matrix(0,2) | ...
% rowNames[1] | matrix(1,0) | matrix(1,1) | matrix(1,2) | ...
% .
% .
% .
%
%
%
%
% latex table formating
function fid = matrixToLatexTable(fid, matrix, rowNames, columnNames, wrapper )
fprintf(fid,'\documentclass{article}\n');
fprintf(fid,'\
\begin{document}\n');</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,' \\begin{tabular}{ |');</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br /></div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />for col=1:size(matrix,2)+1</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,'c | ');</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />end</div><br /><div style="-qt-block-indent: 0; -qt-paragraph-type: empty; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br /></div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,'}\n\\hline\n');</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />for col=1:size(columnNames,1)</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />if col==size(columnNames,1)</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,' %s', columnNames(col,:))</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />else</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,' %s & ', columnNames(col,:))</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />end</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />end </div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,'\n \\\\ \\hline\n');</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />% now write the elements of the matrix</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />for r=1:size(matrix,1)</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,' %s & ', rowNames(r,:))</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />for c=1:size(matrix,2)</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />if c==size(matrix,2)</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />if true</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,'%s ',wrapper(matrix(r,c)));</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />else</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,'%f ', matrix(r,c));</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />end</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />else</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />if true</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,'%s & ',wrapper(matrix(r,c)));</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />else</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,'%f & ', matrix(r,c));</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />end</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />end</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />end </div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br /></div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,' \\\\ \\hline \n');</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />end</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br /></div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,'\\end{tabular}\n');</div><br /><div style="-qt-block-indent: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; text-indent: 0px;"><br />fprintf(fid,'\\end{document}
\n');
fclose(fid);
endfunction
Best of luck- Glen