How to convert or extract arrays from a structure?

In continuous wavelet analysis, when we export the coefficients into the workspace, the data is exported as a structure (1x1 struct). It has three fields as follows with their values:

coefs 32 x 9957

scales 1x32

wname 'gaus1'

Can we get the coefs as an array? I tried struct2cell(S) but there was an error.

Thanks.

Answer 1

[Matt J]

S.coefs already is an array. If you mean that you want it in a separate non-struct variable, simply assign it to something,

coefficients=S.coefs;

[FW]

Thanks it works. What is the function of the dot here [Structure name] dot [Array name]?

[Matt J]

Doing this lets you access a field of a structure as if it were any other variable. For instance, this,

a=S.coefs(2,3);

is equivalent to,

c=S.coeffs;
a=c(2,3);

See also,

https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-structure-array.html