Error using fileparts with Datastore

I found an official Matlab tutorial on youtube and tried to rebuild it, but i got a Syntax Error and don't know how to solve it.

The link to the tutorial: https://youtu.be/K-ob5DIfE7U

My Code so far

So my question: how can i solve this Error? Why is it working in the Video?

Thank you in advance!

Greetings

B. Rebmann

Answer 1

[Jan]

Try:

[~, filenames] = fileparts(cellstr(ds.Files))

But actually this should work. Which Matlab version are you using? spreadsheetDatastore was introduces in R2016a. I do not remember if fileparts worked with arrays in this version. If not, create your own function to do this:

function [Folder, File, Ext] = filepartsX(FilePath)
FilePath = cellstr(FilePath);
Folder = cell(size(FilePath));
File   = cell(size(FilePath));
Ext    = cell(size(FilePath));
for k = 1:numel(FilePath)
    [Folder{k}, File{k}, Ext{k}] = fileparts(FilePath{k});
end
end

[Bartholomäus Jan Rebmann]

Thank you!

The first solution didn't help, but with the second one i could run the script.

Thank you very much!

Answer 2

[Steven Lord]

I believe ds.Files returns a cell array or a string array of file names. Support for a cell array of file names or a string array of file names in fileparts was introduced in release R2020b as stated in the Release Notes.

[Bartholomäus Jan Rebmann]

Alright thank you, then it is probably my version. Thank you