Deleting last element of a nested structure

MySignalData here has multiple 1x1 structs like DIA,DIB,...DIZ,timestamp. Each DIA etc. has multiple 1x1 structs like pt1151,pt9999 etc which has a Data variable. I want to remove the last element in Data such that the size is 21707x1 and I want to apply this to all such ptxxxx in DIA,...DIZ.

How do I vectorize this process or I need to do in a for-loop? Even with a loop, it seems a daunting exercise. Any input is welcome.

[Stephen23]

"How do I vectorize this process or I need to do in a for-loop?"

Most likely you will need two loops and to use both of these:

https://www.mathworks.com/help/matlab/ref/fieldnames.html

https://www.mathworks.com/help/matlab/matlab_prog/generate-field-names-from-variables.html

It would be simpler with non-scalar structures, rather than putting meta-data into fieldnames.

Answer 1

[Sudhakar Shinde]

To remove filed from structure check rmfield.

Example:

s.a = 1;
s.b = 2;
s.c = 3;

Remove field b.

field = 'b';
s = rmfield(s,field)

s = struct with fields:

a: 1

c: 3