diff --git a/src/constantinople_lab_to_nwb/schierek_embargo_2024/schierek_embargo_2024_notes.md b/src/constantinople_lab_to_nwb/schierek_embargo_2024/schierek_embargo_2024_notes.md index bcfacf2..41c8b79 100644 --- a/src/constantinople_lab_to_nwb/schierek_embargo_2024/schierek_embargo_2024_notes.md +++ b/src/constantinople_lab_to_nwb/schierek_embargo_2024/schierek_embargo_2024_notes.md @@ -31,6 +31,71 @@ The "SU" struct is a cell array of all individual cells simultaneously recorded - `AP` – anterior/posterior neuropixels probe location relative to Bregma - `ML` – medial/lateral neuropixels probe location relative to Bregma +#### MATLAB `SU` `location` field converter + +The "location" field in some of the processed ephys data files (e.g. `E003_2022-08-01.mat`) when reading in Python shows up as a `MatlabOpaque` object. +To make the location field readable in Python, please use the `schierek_embargo_2024/mat_utils/convertSULocationToString.m` utility script to convert the location field to a string. + +This script processes .mat files containing the location field within `SU` structures to ensure compatibility with Python. +The script: +1) Recursively searches through a specified directory for .mat files, +2) Loads each file and processes the 'SU' struct if present (skipping files without 'SU' struct) +3) Converts location fields from MATLAB data types (cell arrays, strings) to character arrays to ensure compatibility with Python +4) Preserves the original 'S' structure while saving the modified data ('SU' and 'S') back to the .mat file + +```matlab +% MATLAB script to process all .mat files in a specified directory, +% checking for 'SU' structure and converting 'location' to a plain string if it exists + +% Specify the path to your directory containing the .mat files +folderPath = '/Volumes/T9/Constantinople/Ephys Data/'; % Replace with your actual folder path + +% Get a list of all .mat files in the directory +files = dir(fullfile(folderPath, '**', '*.mat')); +matFiles = fullfile({files.folder}, {files.name}); + +% Loop through each .mat file in the directory +for k = 1:length(matFiles) + matFilePath = fullfile(folderPath, matFiles(k)); + matFilePath = char(matFiles{k}); % Ensure it is a character array + % Load the .mat file + try + data = load(matFilePath); + catch ME + % Handle the error + disp(['An error occurred: ', ME.message]); + continue + end + + % Check if 'SU' structure exists in the loaded data + if isfield(data, 'SU') + SU = data.SU; % Get the SU structure + numUnits = length(SU); + + % Iterate over each unit in the SU structure + for i = 1:numUnits + if isfield(SU{i}, 'location') + % Check and convert location if it is a cell array + if iscell(SU{i}.location) && ~isempty(SU{i}.location) + locationStr = SU{i}.location{1}; % Extract first element if it is a cell + else + locationStr = SU{i}.location; + end + SU{i}.location = locationStr; + end + end + + S = data.S; + save(matFilePath, 'S', 'SU'); + disp(['Processed and saved: ', matFilePath]); + % Clear variables to free up workspace + clear SU; + clear S; + clear data; + end +end +``` + ### Processed behavior data The processed behavior data is stored in custom .mat files (e.g. `J076_2023-12-12.mat`) with the following fields: