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append_edf_files.m
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append_edf_files.m
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clear
dbstop if error
FileNamePostfixString = '_all_appended';
%OutputDataformat = 'edf_0.1uV_Ycuttoff';
%mainSpiSOPPath = 'D:\spisop_toolbox_beta2.3';
mainSpiSOPPath = uigetdir('','choose spisop path, e.g. D:\spisop_toolbox_beta2.3');
fieldtripPath = [mainSpiSOPPath '\fieldtrip_fw'];
external_codePath = [mainSpiSOPPath '\\external_code\enhanced_rdir'];
%folderPathWithFiles = 'B:\merge\merge';
folderPathWithFiles = uigetdir(mainSpiSOPPath,'choose the input folder, e.g. C:\...\input');
%pathOutputFolder = 'B:\merge';
pathOutputFolder = uigetdir(mainSpiSOPPath,'choose the output folder, e.g. C:\...\output');
if ~isdir(pathOutputFolder)
mkdir(pathOutputFolder);
end
addpath(mainSpiSOPPath)
addpath(fieldtripPath)
addpath(external_codePath)
ft_defaults();
cd(folderPathWithFiles)
list_input = {'*.edf','*.eeg'};
[selection,ok] = listdlg('PromptString','Input Data Format','SelectionMode','single','ListString',list_input);
if ~ok
exit('next time select an input data format to run further')
end
data_format_ending = list_input{selection};
list_output = {'edf_0.1uV_Ycuttoff','brainvision_eeg_int16','brainvision_eeg_int32' 'brainvision_eeg_float32' 'edf_autoscale', 'edf_0.01uV_Ycuttoff'};
[selection,ok] = listdlg('PromptString','Output Data Format','SelectionMode','single','ListString',list_output);
if ~ok
exit('next time select an output data format to run further')
end
data_format_output = list_output{selection};
edfFiles = rdir([folderPathWithFiles filesep '\**\' '*' data_format_ending]);
w = waitbar(0,'reading and merging data...Please wait!');
edfFilePathAndNames = {};
for k=1:length(edfFiles)
edfFilePathAndNames{k} = edfFiles(k).name;
end
edfFilePathAndNames = sort(edfFilePathAndNames);
prompt = cellfun(@(s) [ 'before ' s],edfFilePathAndNames,'UniformOutput',false);
title = 'Add(+) or remove(-) seconds before datasets';
dims = [1 35];
definput = cellstr(num2str(zeros(numel(edfFilePathAndNames),1)))';
seconds_add_datasets_before = inputdlg(prompt,title,dims,definput);
prompt = cellfun(@(s) [ 'after ' s],edfFilePathAndNames,'UniformOutput',false);
title = 'Add(+) or remove(-) seconds after datasets';
dims = [1 35];
definput = cellstr(num2str(zeros(numel(edfFilePathAndNames),1)))';
seconds_add_datasets_after = inputdlg(prompt,title,dims,definput);
data = [];
oriDataFilename = 'appended';
oriDataExt = 'edf';
waitbar(0.02);
for k=1:length(edfFilePathAndNames)
[fpathstr,fname,fext] = fileparts(edfFilePathAndNames{k});
oriDataFilename = [fname];
oriDataExt = [fext];
cfg = [];
cfg.continuous = 'yes'; %overwrite the trial uncontinuous data structure
cfg.dataset = edfFilePathAndNames{k};
cfg.channel = 'all';
fprintf('dataset %i %s: read data\n',k,edfFilePathAndNames{k});
data_temp = ft_fw_preprocessing(cfg);
seconds_to_add = str2num(seconds_add_datasets_before{k});
if seconds_to_add ~= 0;
cfg = [];
if seconds_to_add > 0
samples_to_add = seconds_to_add*data_temp.fsample;
for iTrTr = 1:numel(data_temp.trial)
cfg.padtype = 'zero';
data_temp.trial{iTrTr} = ft_preproc_padding(data_temp.trial{iTrTr}, cfg.padtype, samples_to_add, 0);
end
data_temp.time{1} = (0:(size(data_temp.trial{1},2)-1))/data_temp.fsample;
data_temp.sampleinfo = [1 numel(data_temp.time{1})];
% samples_to_precede = seconds_to_precede*data_temp.fsample;
% data_temp.trial{1} = [zeros(size(data_temp.trial{1},1),samples_to_precede) data_temp.trial{1} ];
elseif (seconds_to_add < 0) && (abs(seconds_to_add)*data_temp.fsample+1 < size(data_temp.trial{1},2))
samples_to_add = seconds_to_add*data_temp.fsample;
cfg.begsample = -samples_to_add+1;
cfg.endsample = numel(data_temp.time{1});
data_temp = ft_redefinetrial(cfg,data_temp);
cfg = [];
cfg.offset = samples_to_add+1;
data_temp = ft_redefinetrial(cfg,data_temp);
data_temp.sampleinfo = [1 numel(data_temp.time{1})];
else
error (['tried to cut too much a the beginning of file number' num2str(k) ', the cutting is longer than this file']);
end
end
seconds_to_add = str2num(seconds_add_datasets_after{k});
if seconds_to_add ~= 0;
cfg = [];
if seconds_to_add > 0
samples_to_add = seconds_to_add*data_temp.fsample;
for iTrTr = 1:numel(data_temp.trial)
cfg.padtype = 'zero';
data_temp.trial{iTrTr} = ft_preproc_padding(data_temp.trial{iTrTr}, cfg.padtype, 0, samples_to_add);
end
data_temp.time{1} = (0:(size(data_temp.trial{1},2)-1))/data_temp.fsample;
data_temp.sampleinfo = [1 numel(data_temp.time{1})];
% samples_to_precede = seconds_to_precede*data_temp.fsample;
% data_temp.trial{1} = [zeros(size(data_temp.trial{1},1),samples_to_precede) data_temp.trial{1} ];
elseif (seconds_to_add < 0) && (abs(seconds_to_add)*data_temp.fsample+1 < size(data_temp.trial{1},2))
samples_to_add = seconds_to_add*data_temp.fsample;
cfg.begsample = 1;
cfg.endsample = numel(data_temp.time{1})+samples_to_add;
data_temp = ft_redefinetrial(cfg,data_temp);
%cfg = [];
%cfg.offset = samples_to_add+1;
%data_temp = ft_redefinetrial(cfg,data_temp);
data_temp.sampleinfo = [1 numel(data_temp.time{1})];
else
error (['tried to cut too much a the beginning of file number' num2str(k) ', the cutting is longer than this file']);
end
end
% if seconds_to_add ~= 0;
%
% samples_to_add = seconds_to_add*data_temp.fsample;
% data_temp.trial{1} = [data_temp.trial{1} zeros(size(data_temp.trial{1},1),samples_to_add)];
% end
if k==1
data = data_temp;
else
data.trial{1} = [data.trial{1} data_temp.trial{1}];
data.time{1} = 0:(1/data.fsample):(size(data.trial{1},2)/data.fsample);
data.sampleinfo = [1 size(data.trial{1},2)];
end
data_temp = [];
waitbar(k/length(edfFilePathAndNames),w,[num2str(k) ' data set appended...']);
end
prompt = {'resample at sampling rate (Hz). Please do NOT save in sampling rates that, when dividing 1 by this sampling rate give long decimals like 2^n (e.g. NOT 64 , 128 , 150, 256, 512 BUT 100, 125, 200, 250, 500, 1000)'};
title = 'Update sampling rate?';
dims = [1 35];
definput = cellstr(num2str([data.fsample]))';
updated_samplerate = inputdlg(prompt,title,dims,definput);
updated_samplerate = str2num(updated_samplerate{1});
if updated_samplerate ~= data.fsample
cfg = [];
cfg.resamplefs = updated_samplerate;%frequency at which the data will be resampled (default = 256 Hz)
cfg.detrend = 'no';
data = ft_resampledata(cfg,data);
end
hdr = data.hdr;
hdr.nSamples = size(data.trial{1},2);
hdr.nSamplesPre = 0;
hdr.nTrials = 1;
hdr.Fs = data.fsample;
hdr.nChans = length(data.label);
hdr.nTrials = 1;
tempOutputDataformat = data_format_output;
switch data_format_output
case 'brainvision_eeg_int16'
tempOutputDataformat = 'brainvision_eeg';
hdr.brainvision_outformat = 'int16';%float32 int16 int32;
case 'brainvision_eeg_int32'
tempOutputDataformat = 'brainvision_eeg';
hdr.brainvision_outformat = 'int32';%float32 int16 int32;
case 'brainvision_eeg_float32'
tempOutputDataformat = 'brainvision_eeg';
hdr.brainvision_outformat = 'float32';%float32 int16 int32;
case 'edf_autoscale'
tempOutputDataformat = 'edf';
hdr.edf_doautoscale = true;
case 'edf_0.1uV_Ycuttoff'
tempOutputDataformat = 'edf';
hdr.edf_doautoscale = false;
hdr.edf_accuracy = 0.1;
hdr.edf_docutoff = true;
case 'edf_0.01uV_Ycuttoff'
tempOutputDataformat = 'edf';
hdr.edf_doautoscale = false;
hdr.edf_accuracy = 0.01;
hdr.edf_docutoff = true;
case 'edf_1uV_Ycuttoff'
tempOutputDataformat = 'edf';
hdr.edf_doautoscale = false;
hdr.edf_accuracy = 1;
hdr.edf_docutoff = true;
end
data_file_name = [pathOutputFolder filesep oriDataFilename FileNamePostfixString oriDataExt];
ft_write_data([data_file_name], data.trial{:},'dataformat',tempOutputDataformat,'header',hdr);
close(w)