Are Any Specific MATLAB Toolboxes Required to Use SEPIA?

[al-lebars]

Hello,

I'm encountering the following error when using the SEPIA GUI, which seems to be related to my MATLAB configuration:

Undefined function 'iqr' for input arguments of type 'double'.
 
Error in sepia_utils_compute_weights_v1 (line 36)
    iqr_mask = iqr(weights_1d);
 
Error in SepiaIOWrapper (line 252)
    weights = sepia_utils_compute_weights_v1(fieldmapSD, mask);
 
Error in sepiaIO (line 79)
    SepiaIOWrapper(input, output, maskFullName, algorParam);
 
Error in sepia_config_5 (line 38)
    sepiaIO(input, output_basename, mask_filename, algorParam);
 
Error in run (line 91)
    evalin('caller', strcat(script, ';'));
 
Error in sepia>PushbuttonStart_Callback (line 351)
    run(configFilename);

Error while evaluating UIControl Callback.

The error appears to be caused by the iqr function, which is used to compute the interquartile range. While MATLAB does include a default iqr function, it doesn’t support double arrays as input (which is what the SEPIA code is using). The iqr function in the Statistics Toolbox does accept double arrays and is likely the version required here, but it’s missing from my setup.

Do you know which MATLAB toolboxes are required to run SEPIA? Currently, we only have the "Image Processing Toolbox" installed. And if no specific toolboxes are required, do you have any idea what might be causing the problem?

Thanks in advance for your help!
Anne-Lise

[al-lebars]

I have resolved my problem by updtating Matlab to r2024. Indeed, this function has been moved to Matlab from Satistics and Machine Learning toolbox since the release 2022.