annotate Code/ProcessDatabase.m @ 1:a3d62264030c

tested and working

function [] = ProcessDatabase( databaseName, functionName, sampleStartNum, OVERWRITE )
% run from D:\Dropbox\BUPTResearch2011\EmotionDetectionCode\Code
machineName =  getenv('COMPUTERNAME');

switch machineName
    case 'LAPTOP'
    % for Dawn's laptop
        root = 'D:\Dropbox\'
    case 'SLATE1'
        % for Dawn's Slate
        root = 'E:\Dropbox\'
    case 'DAWNBLACK-PC'
        % for Dawn's work PC
        root = 'C:\Users\dawn\Dropbox\'
end

addpath ([root 'BUPTResearch2011\emotionDetectionCode\Code'])
addpath ([root 'BUPTResearch2011\emotionDetectionCode\Code\Descriptors\Matlab\MPEG7'])
addpath ([root 'BUPTResearch2011\emotionDetectionCode\Code\Descriptors\Matlab\Common'])
addpath ([root 'BUPTResearch2011\emotionDetectionCode\Code\Descriptors\Matlab\MPEG7\FromWeb'])
addpath ([root 'BUPTResearch2011\emotionDetectionCode\Code\Descriptors\PRAAT'])
addpath ([root 'BUPTResearch2011\emotionDetectionCode\Code\Collation'])
addpath ([root 'BUPTResearch2011\emotionDetectionCode\Code\General'])

switch databaseName
    case 'ChineseOpera'
        cd([root 'BUPTResearch2011/Data/Opera/TestDatabase'])
        startEmotion = 4;
    case 'MandarinSpeech'
        cd([root 'BUPTResearch2011/Data/Database/EditedRecording'])
        startEmotion = 3;
    case 'SpeechTestFiles'
        cd([root 'BUPTResearch2011\Data\SpeechTestFiles\MyAnnotatedFiles'])
        startEmotion = 3;
end

fileStructure = dir;

% how many samples do we have?
noOfSamples = size( fileStructure );
firstfileOpen = 1;

if( sampleStartNum < 3 )
    sampleStartNum = 3;
end

for sampleNum = sampleStartNum : noOfSamples(1)
    sampleDirName = fileStructure(sampleNum).name
    if( fileStructure(sampleNum).isdir == 1 ) % only directories
        cd( sampleDirName );
        % how many emotions for that sample?
        validEmotionList = dir;
        noOfEmotions = size( validEmotionList );

        for emotionNum = startEmotion : noOfEmotions(1)
            emotionName = validEmotionList(emotionNum).name;
            cd( emotionName );
            % how many samples for that emotion?
            sampleNames = dir;
            noOfSamples = size( sampleNames );

            for sampleNumber = 3 : noOfSamples(1)
                if( sampleNames(sampleNumber).isdir == 0 ) % skip directories
                    currentSampleName = sampleNames(sampleNumber).name
                    % get the file type
                    extName = currentSampleName(length( currentSampleName ) - 3: end);
                    % is it a .wav file?
                    if strcmp( extName, '.wav' )
                        newDirName = currentSampleName( 1 : length( currentSampleName ) - 4 );
                        % if none exists, make a new directory for all the results of
                        % our calculations.
                        mkdir( [ newDirName '_metrics'] );
                        cd ( [ newDirName '_metrics'] );

                         % call your function here
                        switch functionName
                            % functions that start with 'get' simply read
                            % from existing text files
                            % functions that start with 'detect' check if
                            % the results file already exists, if they do
                            % not (or the OVERWRITE flag is true) then the
                            % results are calculated afresh.
                            
    %                         case 'getsampleDependantThresholds'
    %                             statsFileName = '../../../../FeatureSets/singingsampleDependantThresholds.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             % is this the first sample in this emotion for
    %                             % this sample?
    %                             if( sampleNumber == 3 )
    %                                 if ( firstfileOpen == 0 )
    %                                     if(strfind( oldDirName , 'fem') > 0 )
    %                                         sampleName = oldDirName( 6 : end );
    %                                         meanET = mean( energyThreshold );
    %                                         meanSCT = mean( spectralCentroidThreshold );
    %                                         fprintf( statsFileID, '%s \t %f \t %f \n', sampleName, meanET, meanSCT );
    %                                     elseif(strfind( oldDirName , 'male') > 0 )
    %                                         sampleName = oldDirName( 6 : end );
    %                                         meanET = mean( energyThreshold );
    %                                         meanSCT = mean( spectralCentroidThreshold );
    %                                         fprintf( statsFileID, '%s \t %f \t %f \n', sampleName, meanET, meanSCT );
    %                                     end
    %                                 end
    %                                 
    %                                 spectralCentroidThreshold = [];
    %                                 energyThreshold = [];
    %                                 firstfileOpen = 0;
    %                             end
    %                             
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             [st , et] = getsampleDependantThresholds( newDirName, x, fs, statsFileID, frameLength, noOfFrames );
    %                             spectralCentroidThreshold = [spectralCentroidThreshold st];
    %                             energyThreshold = [energyThreshold et];
    %                             oldDirName = newDirName;
    %   
    %                             fclose( statsFileID );
    %                         case 'getPitchStatistics'
    %                             statsHeaderFileName = '../../../../FeatureSets/singingHeaderPitchStats.txt';
    %                             statsHeaderFileID = fopen( statsHeaderFileName, 'w' );
    %                             if( firstfileOpen == 1 )
    %                                 fprintf( statsHeaderFileID, 'name \t unvoiced to voiced frame ratio \t mean voiced pitch \t median voiced pitch \t stdev voiced pitch \t variance voiced pitch \t min voiced pitch \t max voiced pitch \t range voiced pitch \t mean voiced pitch grad \t median voiced pitch grad \t stdev pitch grad \t variance voiced pitch grad \t min voiced pitch grad \t max voiced pitch grad \t range voiced pitch grad \n');
    %                                 firstfileOpen = 0;
    %                             end
    %                             fclose(statsHeaderFileID);
    %                             
    %                             statsFileName = '../../../../FeatureSets/singingPitchStats.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getPitchStatistics( newDirName, x, fs, statsFileID, frameLength, noOfFrames );
    %                             fclose( statsFileID );
    %                         
    %                       
    %                              
    %                             
    %                                
    %                         %%%%%%%%%%%%%%% careful %%%%%%%%%%%%%%%    
    %                         case 'getHNRStatistics'
    %                             statsHeaderFileName = '../../../../FeatureSets/singingHeaderHNRStats.txt';
    %                             statsHeaderFileID = fopen( statsHeaderFileName, 'w' );
    %                             if( firstfileOpen == 1 )
    %                                 fprintf( statsHeaderFileID, 'name \t \t \t \t \t \n');
    %                                 firstfileOpen = 0;
    %                             end
    %                             fclose(statsHeaderFileID);
    %                             
    %                             statsFileName = '../../../../FeatureSets/singingHNRStats.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getHNRStatistics( newDirName, x, fs, statsFileID, frameLength, noOfFrames );
    %                             fclose( statsFileID );
    %                         
    %                             
    %                             
    %                             
    %                         case 'getEnergyStatistics'
    %                             statsFileName = '../../../../FeatureSets/singingEnergyStats.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             if( firstfileOpen == 1 )
    %                                 fprintf( statsFileID, 'name \t mean energy \t mean voiced energy \t mean unvoiced energy \n');
    %                                 firstfileOpen = 0;
    %                             end
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getEnergyStatistics( newDirName, x, fs, statsFileID, frameLength, noOfFrames );
    %                             fclose( statsFileID );
    %                             
    %                             
    % %                         %%%%% for energy-related features %%%%%    
    % %                         case 'getOtherEnergyStatistics'
    % %                             statsFileName = '../../../../FeatureSets/singingOtherEnergyStats.txt';
    % %                             statsFileID = fopen( statsFileName, 'a' );
    % %                             if( firstfileOpen == 1 )
    % %                                 fprintf( statsFileID, 'name \t derivation of non silent energy \t derivation of voiced energy \t derivation of unvoiced energy \n');
    % %                                 firstfileOpen = 0;
    % %                             end
    % %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    % %                             getOtherEnergyStatistics( newDirName, x, fs, statsFileID, frameLength, noOfFrames );
    % %                             fclose( statsFileID );
    % 
    %                             
    %                             
    %                         case 'getBasicDescriptors'
    %                             % includes audio waveform and audio power
    %                             statsFileName = '../../../../FeatureSets/singingbasicDescriptors.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             if( firstfileOpen == 1 )
    %                                 fprintf( statsFileID, 'name \t meanAWF \t STDAWF \t minAWF \t maxAWF \t rangeAWF \t meanAP \t STDAP \t minAP \t maxAP \t rangeAP \t meanHR \t STDHR \t minHR \t maxHR \t rangeHR \n');
    %                                 firstfileOpen = 0;
    %                             end
    % 
    %                             getBasicDescriptors( newDirName, statsFileID );
    %                             fclose( statsFileID );
    %                         case 'getBasicSpectralDescriptors'
    %                             % includes audio spectrum envelope, audio spectrum
    %                             % centroid, audio spectrum spread, audio spectrum flatness
    %                              statsFileName = '../../../../FeatureSets/singingbasicSpectralDescriptors.txt';
    %                              statsFileID = fopen( statsFileName, 'a' );
    %                              % Add a header column
    %                             if( firstfileOpen == 1 )
    %                                  fprintf( statsFileID, ' name \t meanASE \t STDASE \t minASE \t maxASE \t rangeASE \t meanASC \t STDASC \t minASC \t maxASC \t rangeASC \t meanASS \t STDASS \t minASS \t maxASS \t rangeASS \t meanASF \t STDASF \t minASF \t maxASF \t rangeASF \n');
    %                                 % fprintf( statsFileID, ' name \t meanAWE \t STDAWE \t minAWE \t maxAWE \t rangeAWE \t meanAP \t STDAP \t minAP \t maxAP \t rangeAP \n');
    %                                  firstfileOpen = 0;
    %                              end
    %  
    %                              getBasicSpectralDescriptors1( newDirName, statsFileID );
    %                              fclose( statsFileID );
    %                             disp('NOT FINISHED');
    %                         case 'getTemporalTimbralDescriptors'
    %                             
    %                             % includes log attack time and temporal
    %                             % centroid
    %                             statsFileName = '../../../../FeatureSets/singingtemporalTimbralDescriptors.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             % Add a header column
    %                             if( firstfileOpen == 1)
    %                                 fprintf( statsFileID, ' name \t temporal centriod \t log attack time \n');
    %                                 firstfileOpen = 0;
    %                             end
    % 
    %                             getTemporalTimbralDescriptors( newDirName, statsFileID );
    %                             fclose( statsFileID );
    %                         case 'getSpectralTimbralDescriptors'
    %                             % collate the Harmonic Spectral Centroid,
    %                             % Harmonmic Spectral Deviation, Harmonic
    %                             % Spectral Spread, Harmonic Spectral Variation
    %                             % and Spectral Centroid
    %                             
    %                             statsFileName = '../../../../FeatureSets/singingspectralTimbralDescriptors.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             % Add a header column
    %                              if( firstfileOpen == 1)
    %                                  fprintf( statsFileID, ' name \t HSC \t HSD \t HSS \t HSV \t SC \n');
    %                                  firstfileOpen = 0;
    %                              end
    % 
    %                             getSpectralTimbralDescriptors( newDirName, statsFileID );
    %                             fclose( statsFileID );
    %                         case 'getMFCCs'
    %                             if( firstfileOpen )
    %                                 statsFileName = '../../../../FeatureSets/singingMFCCDescriptorsHeader.txt';
    %                                 statsFileID = fopen( statsFileName, 'w' );
    % 
    %                                 % Add a header file
    % %                                 putMFCCHeader( statsFileID );
    %                                 fclose( statsFileID );
    %                             end
    %                             
    %                             statsFileName = '../../../../FeatureSets/singingMFCCDescriptors.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                         
    %                             getMFCCStatistics( newDirName, statsFileID );
    %                             fclose( statsFileID );
    %                        
    %                         %lin  
                            case 'getPRAAT'
                                % collate all Shimmer values                
                                statsFileName = '../../../../../../../TestResults/singingPRAATStats.txt';
                                
                                % Add a header row
                                if( firstfileOpen == 1 )
                                    statsFileID = fopen( statsFileName, 'w' );
                                    fprintf( statsFileID, 'Metrics calculated using the PRAAT software. \n' );
                                    fprintf( statsFileID, ' name \t JITTER: ddp \t local \t ppq5 \t rap \t SHIMMER: local \t dda \t apq3 \t apq5 \t apq11 \n');
                                    fprintf( statsFileID, 'For each of the BURG FORMANTS: numberOfFormants \t meanFrequency \t varFrequency \t minFrequency \t maxFrequency \n');
                                    fprintf( statsFileID, 'meanFrequencyDerivative \t varienceFrequencyDerivative \t minFrequencyDerivative \t max FrequencyDerivative \n');
                                    fprintf( statsFileID, 'meanFrequency2ndDerivative \t varienceFrequency2ndDerivative \t minFrequency2ndDerivative \t max Frequency2ndDerivative \n');
                                    fprintf( statsFileID, 'meanBandwidth \t varBandwidth \t minBandwidth \t maxBandwidth \n');
                                    fprintf( statsFileID, 'meanBandwidthDerivative \t varBandwidthDerivative \t minBandwidthDerivative \t maxBandwidthDerivative \n');
                                    fprintf( statsFileID, 'meanBandwidth2ndDerivative \t varBandwidth2ndDerivative \t minBandwidth2ndDerivative \t maxBandwidth2ndDerivative \n');
                                    fprintf( statsFileID, 'For the mean of all three formants: meanFrequency \t varFrequency \t minFrequency \t maxFrequency \n');
                                    fprintf( statsFileID, 'meanFrequencyDerivative \t varienceFrequencyDerivative \t minFrequencyDerivative \t max FrequencyDerivative \n');
                                    fprintf( statsFileID, 'meanFrequency2ndDerivative \t varienceFrequency2ndDerivative \t minFrequency2ndDerivative \t max Frequency2ndDerivative \n');
                                    firstfileOpen = 0;
                                else
                                    statsFileID = fopen( statsFileName, 'a' );
                                end

                                get_PRAAT( newDirName, statsFileID );
                                fclose( statsFileID );

    %                         case 'getJitter'
    %                             % collate Jitter                 
    %                             statsFileName = '../../../../FeatureSets/singingJitterStats.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %      
    %                             getJitter( newDirName, statsFileID );
    %                             fclose( statsFileID );       
    %                            
    % 
    %                                                         
    %                         %%%%% get all the pitch and energy related features
                            
                                
    %                         case 'getFeaturesOfDuration'
    %                             % collate number, mean and ratio duration of
    %                             % unvoiced and voiced sounds, median and 
    %                             % standard deviation number of voiced sounds
    %                             statsFileName = '../../../../FeatureSets/singingDurationStats.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             getFeaturesOfDuration( newDirName, statsFileID );
    %                             fclose( statsFileID );
    %                            
    %                         case 'getFeaturesOfRelativePitch'
    %                             % collate relative pitch maximum, minimum and
    %                             % the position of those pitches
    %                             statsFileName = '../../../../FeatureSets/singingRelativePitchStats.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             getFeaturesOfRelativePitch( newDirName, statsFileID );
    %                             fclose( statsFileID );
    %                             
    %                         case 'getFeaturesOfRelativeEnergyGradient'
    %                             % collate the value and position of relative
    %                             % maximum of energy gradient
    %                             statsFileName = '../../../../FeatureSets/singingRelativeEnergyGradientStats.txt';
    %                             statsFileID = fopen( statsFileName, 'a' );
    %                             getFeaturesOfRelativeEnergyGradient( newDirName, statsFileID );
    %                             fclose( statsFileID );
    %                                 
    %                             
    %                                                        
                            case 'calculatePitch'
                                detect_pitch( currentSampleName, OVERWRITE );
                                
                            case 'calculateSilence'
                                detect_silence( currentSampleName, OVERWRITE );
                                
                            case 'calculateVUV'
                                % find the voiced and unvoiced frames using
                                % the harmonic ratio and pitch information
                                detect_VoicedUnvoiced( currentSampleName, OVERWRITE );
                                
    %                         case 'calculateAudioWaveform'
    % 
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             AW_Detection( currentSampleName, x, fs, frameLength, noOfFrames );
    %                             
    %                         case 'calculateAudioSpectrumEnvelope'
    %                             
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             ASE_Detection( currentSampleName, x, fs, frameLength, noOfFrames );
    %                             
    %                         case 'calculateAudioSpectrumCentriodAndSpread'
    % 
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             ASC_ASS_Detection( currentSampleName, x, fs, frameLength, noOfFrames );
    % 
    %                         case 'calculateAudioSpectrumBasisAndProjection'
    % 
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             ASB_ASP_Detection( currentSampleName, x, fs, frameLength, noOfFrames );
    % 
                            case 'calculateAudioPower'
    
%                                 [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
                                detect_AudioPower( currentSampleName, x, fs, frameLength, noOfFrames );
    % 
    %                         case 'calculateLogAttackTIme'
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             LAT_Detection( currentSampleName, x, fs, frameLength, noOfFrames );
    % 
    %                         case 'calculateTemporalCentroid'
    % 
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             TC_Detection( currentSampleName, x, fs, frameLength, noOfFrames );
    % 
    %                         case 'calculateHarmonicRatio'
    %                             
    %                             % can't find this function yet
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             HR_Detection( currentSampleName, x, fs, frameLength, noOfFrames );
    %                             
                            case 'calculateHarmonicNoiseRatio'
                                detect_HNR( currentSampleName, OVERWRITE );
    %                             
    %                         case 'calculateSpectralTimbralDescriptors'
    %                             
    %                             % these are best calculated together.
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             spectralTimbralDescriptors( currentSampleName, x, fs, frameLength, noOfFrames );
                                
                            case 'calculateAudioSpectrumFlatness'
                                
                                [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
                                AudioSpectralFlatness_Detection( currentSampleName, x, fs, frameLength, noOfFrames );
                                
    %                         case 'calculateMFCCs'
    %                             
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             MFCC_Detection( currentSampleName, x, fs, frameLength, noOfFrames );
    %                             
    %                         case 'calculatesampleDependantThresholds'
    %                             
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             sampleDependantThresholds(  currentSampleName, x, fs, frameLength, noOfFrames );
    %                             
    %                             
    %                         %%%%% pitch related features %%%%%    
    %                         case 'calculatesampleVoicedSoundDuration'
    %                             
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getVoicedSoundDuration( currentSampleName, x, fs, noOfFrames, frameLength );
    %                             
    %                         case 'calculatesampleRelativePitch'
    %                             
    %                             singingpitchStatsFileName = 'singingpitchStats.txt';
    %                             singingpitchStatsFileID = fopen( singingpitchStatsFileName, 'r' );
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getRelativePitch( singingpitchStatsFileID, currentSampleName, x, fs, noOfFrames, frameLength, 7 );
    %                             fclose(singingpitchStatsFileID);
    % 
    %                         case 'calculatesampleRelativePitchFeatures'
    %                             
    %                             singingpitchStatsFileName1 = '../../../../FeatureSets/singingpitchStats.txt';
    %                             singingpitchStatsFileID1 = fopen( singingpitchStatsFileName1, 'r' );
    %                             singingpitchStatsFileName2 = 'singingpitchStats.txt';
    %                             singingpitchStatsFileID2 = fopen( singingpitchStatsFileName2, 'r' );
    %                             [averageValues1 averageValues2 averageValues3] = getRelativePitchFeatures( singingpitchStatsFileID1, 7 );
    %                             getEachRelativePitchFeature( singingpitchStatsFileID2, currentSampleName, 7, averageValues1, averageValues2, averageValues3 );
    %                             fclose(singingpitchStatsFileID1);
    %                             fclose(singingpitchStatsFileID2);
    %                             
    %                         case 'calculatesamplePitchPosition'
    %                             
    %                             singingpitchStatsFileName = 'singingpitchStats.txt';
    %                             singingpitchStatsFileID = fopen( singingpitchStatsFileName, 'r' );
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getPitchPosition( singingpitchStatsFileID, currentSampleName, x, fs, noOfFrames, frameLength, 7 );
    %                             fclose(singingpitchStatsFileID);
    %                           
    %                             
    %                             
    %                         %%%%% energy related features %%%%%
    %                         case 'calculatesampleRelativeEnergyByMeanAll'
    %                             
    %                             singingenergyStatsFileName = '../../../../FeatureSets/singingenergyStats.txt';
    %                             singingenergyhStatsFileID = fopen( singingenergyStatsFileName, 'r' );
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getRelativeEnergyByMeanAll( singingenergyhStatsFileID, currentSampleName, x, fs, noOfFrames, frameLength, 3 );
    %                             fclose(singingenergyhStatsFileID);
    %                          
    %                         case 'calculatesampleRelativeEnergyByMeanVoiced'
    %                             
    %                             singingenergyStatsFileName = '../../../../FeatureSets/singingenergyStats.txt';
    %                             singingenergyhStatsFileID = fopen( singingenergyStatsFileName, 'r' );
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getRelativeEnergy( singingenergyhStatsFileID, currentSampleName, x, fs, noOfFrames, frameLength, 3 );
    %                             fclose(singingenergyhStatsFileID);
    %                             
    %                         case 'calculatesampleRelativeEnergyGradientByMeanAll'
    %                             
    %                             statsFileName = '../../../../FeatureSets/singingenergyStats.txt';
    %                             statsFileID = fopen( statsFileName, 'r' );
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getRelativeEnergyGradient( statsFileID, newDirName, x, fs, noOfFrames, frameLength, 3 );
    %                             fclose( statsFileID );    
    %                             
    %                         case 'calculatesampleRelativeEnergyGradientFeaturesByMeanAll'
    %                             
    %                             [x, fs, frameLength, noOfFrames] = openFile( currentSampleName );
    %                             getRelativeEnergyGradientFeatures( currentSampleName, x, fs, noOfFrames, frameLength );
    %                             

                            end

                            cd ../
                        end
                    end

            end
            cd ../

        end
        cd ../
    end
    
end

cd ../