You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: gind2sub.m
    path of file: ./repos/fieldtrip/external/afni
    
    the code of the file until where you have to start completion: function [err, v] = gind2sub (sz, ndx)

    
function [err, v] = gind2sub (sz, ndx)
%
%   [err,] = gind2sub ()
%
%Purpose:
%   This function converts a linear index to multiple subscripts based on the dimensions.
%   It is a further modified version from Ziad's modification based on the original Matlab
%   function IND2SUB. The difference from what Ziad did is that we vary the subscript starting
%   from the last dimension and end