We have received this kind of feedback before, and agree that the ability to watch specific questions for new answers and comments would be useful. I do not have a specific timeframe, but we are working on adding this functionality to MATLAB Answers
In order to "watch" a variable, you can set a conditional breakpoint to stop when a certain condition is met. You can select a conditional break point interactively from the editor tab in MATLAB R2012b or newer, or through the command line.
For example, to stop in debug mode when ii is equal to 25, in the file "watched.m", which consists of the following:
for ii = 1:100
disp(ii)
end
You could run:
dbstop in watched at 2 if (ii == 25)
For more information, please see the documentation for dbstop:
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