When using the Publish feature of MATLAB, it typically publishes only what comes after the % signs or the function output. However, is there any command to take a variable and splice its value into text, possibly even creating LaTeX formulae from a MATLAB variable that holds a character string?
How to manually output publishing content from a variable
Asked Answered
To use variables from the workspace
when Publishing to html using disp() with a html encoded string will add the lines to the output (without using the formatting for code output).
for example
str = sprintf('some value: %f from the workspace',variable)
disp(['<html>',str,'</html>'])
Notes:
- It is quite sensitive and you may need to add invisible section breaks between code output and lines produced in this way.
- Adding paragraph tags is useful to improve formatting
- Sadly (to my knowledge) the publishing markdown interpreter is not used on these lines, they are "injected" into the output, therefore latex equations will not work.
Code
%% HTML option
% This option is anly available with HTML output...
a=1;
str = ['The current value of a is ', num2str(a)];
%%%
%
% When publishing to HTML using the |disp| function with HTML tags
% surrounding the string can allow workspace variables to appear within
% text.
%
% For example the following line is created by evaluating code, it is not a
% comment in the m-file
%
disp(['<html><p>',str,'</p></html>']);
%% Changing the value
% Now if we change a to 2...
a=2,str = ['The new value of a is ', num2str(a)];
%%
% Re-runing a similar code should show the updated value
disp(['<html><p>',str,'</p></html>'])
Output
The code above generates the following:
Works great for content, but I can't seem to be able to use LaTeX. –
Vonnie
Sorry may have not give it enough attention or the right working but the 3rd bullet point was inteded to cover this... basically as far as I can tell text produced this way isn't interpreted by publish but is just "injected" into the html document –
Tiemroth
Here is an example of rendering LaTeX formulae (one hard-coded in comments, other stored as a string in a variable).
%% LaTeX Examples
% Below are some equations rendered in LaTeX.
% (try to publish this file).
%
%% The definition of e
% Here we use equation embedded in the file.
%
% $$ e = \sum_{k=0}^\infty {1 \over {k!} } $$
%
%% The Laplace transform
% Here we render an equation stored in a variable.
%
% offscreen figure
fig = figure('Menubar','none', 'Color','white', ...
'Units','inches', 'Position',[100 100 6 1.5]);
axis off
str = 'L\{f(t)\} \equiv F(s) = \int_0^\infty\!\!{e^{-st}f(t)dt}';
text(0.5, 0.5, ['$$' str '$$'], 'Interpreter','latex', 'FontSize',28, ...
'HorizontalAlignment','center', 'VerticalAlignment','middle')
snapnow
close(fig);
Here is how it looks like when the file is published as HTML:
You could wrap that last code in a helper function render_latex_string(str) and call it from different places.
To use variables from the workspace
when Publishing to html using disp() with a html encoded string will add the lines to the output (without using the formatting for code output).
for example
str = sprintf('some value: %f from the workspace',variable)
disp(['<html>',str,'</html>'])
Notes:
- It is quite sensitive and you may need to add invisible section breaks between code output and lines produced in this way.
- Adding paragraph tags is useful to improve formatting
- Sadly (to my knowledge) the publishing markdown interpreter is not used on these lines, they are "injected" into the output, therefore latex equations will not work.
Code
%% HTML option
% This option is anly available with HTML output...
a=1;
str = ['The current value of a is ', num2str(a)];
%%%
%
% When publishing to HTML using the |disp| function with HTML tags
% surrounding the string can allow workspace variables to appear within
% text.
%
% For example the following line is created by evaluating code, it is not a
% comment in the m-file
%
disp(['<html><p>',str,'</p></html>']);
%% Changing the value
% Now if we change a to 2...
a=2,str = ['The new value of a is ', num2str(a)];
%%
% Re-runing a similar code should show the updated value
disp(['<html><p>',str,'</p></html>'])
Output
The code above generates the following:
Works great for content, but I can't seem to be able to use LaTeX. –
Vonnie
Sorry may have not give it enough attention or the right working but the 3rd bullet point was inteded to cover this... basically as far as I can tell text produced this way isn't interpreted by publish but is just "injected" into the html document –
Tiemroth
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