In some libraries, eg the one below from CVX, I notice the argument full
. I can't seem to find any documentation that explains what this is and why it's there. Can anyone explain?
EDIT: As suggested, here is a link to the function . Please note that this is the entire function.
function y = cvx_isaffine( x, full )
narginchk(1,2);
if nargin == 1,
y = true;
else
y = true( size( x ) );
end
In this function, the test if nargin == 1
checks to see if the second input argument, full
is given. If it is, the output is a logical array of same size as x
. If it is not, then the output is a scalar logical array.
That is,
M = randn(10,3);
cvx_isaffine(M)
returns true
, whereas
cvx_isaffine(M,1)
returns a 10x3 array with all elements are true
.
You can fill in whatever you want for this second argument, as its value is not used anywhere. Just the presence of the 2nd argument is a flag for a change in behavior.
The function seems to not be documented because it is meant for internal use, and not for use by the end-user.
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