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: DEMO_febio_0063_custom_hip_implant_01.m
    path of file: ./repos/GIBBON/docs
    
    the code of the file until where you have to start completion: %% DEMO_febio_0063_custom_hip_implant_01.m
% Below is a demonstration for:
%
% * Importing bone geometry
% * Building geometry for a custom hip implant
% * Evaluating the implant using FEA

%% Keywords
%
% * febio_spec version 4.0
% * febio, FEBio
% * femur force loading
% * force control boundary condition
% * tetrahedral elements, tet4
% * static, solid
% * hyperelastic, Ogden
% * displacement logfile
% * stress logfile

%%

clear; close all; clc;

%% Plot settings
fontSize=20;
faceAlpha1=0.8;
markerSize=40;
markerSize2=20;
lineWidth=3;

%% Control parameters

% Path names
defaultFolder = fileparts(fileparts(mfilename('fullpath')));
savePath=fullfile(defaultFolder,'data','temp');
pathNameSTL=fullfile(defaultFolder,'data','STL');
loadName_SED=fullfile(savePath,'SED_no_implant.mat');

if ~exist(loadName_SED,'file')
    skipCompare=1; 
    warning('This demo requires: DEMO_febio_0062_femur_load_01.m, to be completed first. Demo will continue but comparison to hip without femur will be skipped.');       
else
    skipCompare=0;
end

% Defining file names
febioFebFileNamePart='tempModel';
febioFebFileName=fullfile(savePath,[febioFebFileNamePart,'.feb']); %FEB file name
febioLogFileName=fullfile(savePath,[febioFebFileNamePart,'.txt']); %FEBio log file name
febioLogFileName_disp
    
function can be used to view the xml structure in a MATLAB
% figure window. 

%%
% |febView(febio_spec); %Viewing the febio file|

%% Exporting the FEBio input file
% Exporting the febio_spec structure to an FEBio input file is done using
% the |febioStruct2xml| function. 

febioStruct2xml(febio_spec,febioFebFileName); %Exporting to file and domNode

%% Running the FEBio analysis
% To run the analysis defined by the created FEBio input file the
% |runMonitorFEBio| function is used. The input for this function is a
% structure defining job settings e.g. the FEBio input file name. The
% optional output runFlag informs the user if the analysis was run
% succesfully. 

febioAnalysis.run_filename=febioFebFileName; %The input file name
febioAnalysis.run_logname=febioLogFileName; %The name for the log file
febioAnalysis.disp_on=1; %Display information on the command window
febioAnalysis.runMode=runMode;

[runFlag]=runMonitorFEBio(febioAnalysis);%START FEBio NOW!!!!!!!!

%% Import FEBio results 

if runFlag==1 %i.e. a succesful run
    
    %%     
    % Importing nodal displacements from a log file
    dataStruct=importFEBio_logfile(fullfile(savePath,febioLogFileName_disp),0,1);
    
    %Access data
    N_disp_mat=dataStruct.data; %Displacement
    timeVec=dataStruct.time; %Time
    
    %Create deformed coordinate set
    V_DEF=N_disp_mat+repmat(V,[1 1 size(N_disp_mat,3)]);
    
    %%
    % Importing element strain energies from a log file
    dataStruct=importFEBio_logfile(fullfile(savePath,febioLogFileName_strainEnergy),0,1); %Element strain energy
    
    %Access data
    E_energy=dataStruct.data;
        
    %% Compare to non-implant case
    
    if skipCompare==0
        
        % Interpolate at coordinates with implant
        W_p_at_VE_12=interpFuncEnergy(VE_12);
        
        W_12=E_energy(logicBoneElements,:,end