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: icatb_display_dynamic_coherence.m
    path of file: ./repos/gift/GroupICAT/icatb/toolbox/dynamic_coherence
    
    the code of the file until where you have to start completion: function icatb_display_dynamic_coherence(param_file)
%% Display dynamic coherence results
%
%

%% Select dynamic coherence param file
if (~exist('param_file', 'var'))

    
function icatb_display_dynamic_coherence(param_file)
%% Display dynamic coherence results
%
%

%% Select dynamic coherence param file
if (~exist('param_file', 'var'))
    param_file = icatb_selectEntry('title', 'Select dynamic coherence parameter file', 'typeEntity', 'file', 'typeSelection', 'single', 'filter', '*dyn_coh.mat');
    drawnow;
    if (isempty(param_file))
        error('Dynamic Coherence parameter file is not selected');
    end