39 lines
1.9 KiB
Matlab
39 lines
1.9 KiB
Matlab
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function xIMUdataStruct = ImportDirectory(directory)
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%IMPORTDIRECTORY Imports all x-IMU data CSV files within directory
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%
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% xIMUdataStruct = ImportDirectory(directory)
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%
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% Automatically imports x-IMU CSV files within specified directly.
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% Imported data is returned as a structure of xIMUdataClass objects. The
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% name of each member will "ID_ABCD" where "ABCD" if the x-IMU device ID
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% if available (i.e. if *_Registers.csv file present) or "FILE_00000"
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% where "00000" is the file name prefix of the CSV files.
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%% Import CSV files
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listing = dir(strcat(directory, '\*_*.csv')); % list all *_*.csv files in directory
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fileNamePrefixes = unique(strtok({listing.name}, '_')); % list unique file name prefixes (e.g. name_*.csv)
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xIMUdataObjs = cell(length(fileNamePrefixes), 1);
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for i = 1:length(fileNamePrefixes)
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try xIMUdataObjs{i} = xIMUdataClass(strcat(directory, '\', fileNamePrefixes{i})); catch e, end
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end
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fileNamePrefixes(cellfun(@isempty,xIMUdataObjs)) = []; % remove failures from lists
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xIMUdataObjs(cellfun(@isempty,xIMUdataObjs)) = [];
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if(numel(xIMUdataObjs) == 0)
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error('No data was imported.');
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end
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%% Organise data in structure
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fieldNames = cell(numel(xIMUdataObjs), 1);
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try % try using device IDs as structure field names
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for i = 1:numel(xIMUdataObjs)
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fieldNames{i} = strcat('ID_', dec2hex(xIMUdataObjs{i}.RegisterData.GetValueAtAddress(2)));
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end
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xIMUdataStruct = orderfields(cell2struct(xIMUdataObjs, fieldNames, 1));
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catch e % otherwise use file name prefix (alpha-numeric characters only)
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for i = 1:numel(xIMUdataObjs)
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fieldNames{i} = strcat('FILE_', fileNamePrefixes{i}(isstrprop(fileNamePrefixes{i}, 'alphanum')));
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end
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xIMUdataStruct = orderfields(cell2struct(xIMUdataObjs, fieldNames, 1));
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end
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end
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