MATLAB: Fucntion input Varargin, value or name.

Question

Im trying to load data from an IMU, but I struggle interpeting what i need to use as input for varagi parmater.

Can anyone explane what i have to type inn her,

Imu = loadImu( FileName, varargi(What do i need to write here?))

Example of the code i want to load,

    function [ Imu ] = loadImu( FileName, varargi)
    %%Arguments
    MASTER = 'RA';
    option = 'sync';
    FsOut = 512;
    nVarargs = length(varargin);
    for iArg = 1:2:nVarargs
    if      strcmp(varargin{iArg}, 'Master'), MASTER = varargin{iArg+1};
    elseif  strcmp(varargin{iArg}, 'option'), option = varargin{iArg+1};
    elseif  strcmp(varargin{iArg}, 'Fs')
        FsOut = varargin{iArg+1};
        resampleData = 1;
    else error('Invalid argument.');
    end
  end

Answer 1

Assuming that the first line of the function is

function [ Imu ] = loadImu( FileName, varargin)

and not

function [ Imu ] = loadImu( FileName, varargi)

as you have written, then you can call it with

Imu = loadImu(somefilename);
%or

Imu = loadImu(somefilename, 'Master', somevalue)
%or 
Imu = loadImu(somefilename, 'option', somevalue)
%or
Imu = loadImu(somefilename, 'Fs', somevalue)

or any combination of the extra arguments in any order