MATLAB: How to save a property of a struct without copying it to a variable

Question

The 'save' function takes variable names as strings, but if I have a structure, I cannot save an individual property without first saving it to a variable (or without saving all properties of the struct). Is there a way to save just an individual property?

Answer 1

You could use the "matfile" function.  Please refer to the following link for examples on how to save and load part of a variable: <http://www.mathworks.com/help/matlab/ref/matfile.html#bt19yqz-1>

Please try the following example:

 

test = struct('a', [1 2 3],'b',[4 5 6])
m = matfile('myMatfile.mat');
m.a = test.a

From here, you can clear your variables using 'clear' and load 'myMatfile.mat', which should load the variable 'a' back into the workspace.