Ask for a code

Please explain for me this code

function [L,I]=selectdof(DOF,seldof,varargin)

%SELECTDOF Select degrees of freedom.

% % L=selectdof(DOF,seldof)

% [L,I]=selectdof(DOF,seldof)

% L=selectdof(DOF,seldof,'Ordering',ordering)

% creates the matrix to extract degrees of freedom from the global degrees of

% freedom by matrix multiplication. %

% DOF Degrees of freedom (nDOF * 1)

% seldof Selected DOF labels (kDOF * 1)

% L Selection matrix (kDOF * nDOF)

% I Index vector (kDOF * 1)

% ordering 'seldof','DOF' or 'sorted' Default: 'seldof'

% Ordering of L and I similar as seldof, DOF or sorted

I have 5 nodes with coordinates

% Nodes=[NodID X  Y  Z]
Nodes=  [1     0  0  0;
         2     0  4  0;
         3     0  4  0;
         4     4  4  0;
         5     4  0  0;
         6     1  5  0];

why seldof at nodes 1 and 5 is

seldof=[0.03; 0.04; 0.05; 1.00; 5.01; 5.02];

What seldof mean ?

[Walter Roberson]

This appears to relate to https://www.scribd.com/document/370282460/StaBIL-3-0

[Tran Hoa]

Exactly. However, I dont understand seldof in this case, please explain for me, Thank you very much,

[Adam]

It's very difficult for someone to just explain an arbitrary function from somewhere else that doesn't include any validation of inputs or comments as to what they are supposed to be.

Your first port of call should be asking the person you got the code from. We don't know if the code even works so spending time trying to understand what it is doing is not worth it without more information.

[Walter Roberson]

The above was the only record I could find of the toolbox, with the exception that I see the paper listed on the publication list at that university.