function line, as long as there is not code between the function line and the start of the help text.See also, any names on the line that match the name of a class or function on the search path will automatically link to the documentation of that class/function.
\. Otherwise, the names will first try and resolve to member functions.<a href="matlab:web('url')">Name</a> are allowed.A common source of bugs is trying to loop over the elements of a column vector. A column vector is treated like a matrix with one column. (There is actually no distinction in Matlab.) The for loop runs once with the loop variable set to the column.
% Prints once: [3, 1]
my_vector = [1; 2; 3];
for i = my_vector
display(size(i))
end
Altering the iteration variable changes its value for the current iteration, but has no impact on its value in subsequent iterations.
% Prints 1, 2, 3, 4, 5
for i = 1:5
display(i)
i = 5; % Fail at trying to terminate the loop
end
a:b in right-hand sideThe basic example treats 1:n as a normal instance of creating a row vector and then iterating over it. For performance reasons, Matlab actually treats any a:b or a:c:b specially by not creating the row vector entirely, but instead creating each element one at a time.
This can be detected by slightly altering the syntax.
% Loops forever
for i = 1:1e50
end
% Crashes immediately
for i = [1:1e50]
end
Matlab FFT is a very parallelized process capable of handling large amounts of data. It can also use the GPU to huge advantage.
ifft(fft(X)) = X
The above statement is true if rounding errors are omitted.
try/catch blocks with documented fallbacks.This topic displays best practices that the community has learned over time.
These functions will create a matrix of doubles, by default.
accumarray", by Loren Shure, February 20, 2008.accumarray in the official MATLAB documentation.The only thing that you need to work out by yourself is the positioning of the colorbar (if you want to display it at all). this will depend on the number of graphs you have, and the bar's orientation.
Position and size is defined using 4 parameters - x_start, y_start, x_width, y_width. The plot is usually scaled to normalized units so that the bottom-left corner corresponds with (0,0) and the top-right to (1,1).