How to apply butterworth filter to a cell array?

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Tomaszzz on 21 Feb 2022
Commented: Tomaszzz on 21 Feb 2022
Hi all,
I have a 7x1 cell for which I would like to apply a butterworth filter to all cell arrays. Any idea how to do it?
Index in position 2 exceeds array bounds (must not exceed 1).

Accepted Answer

Jan on 21 Feb 2022
You cell has the size {7x1}, not {1x7}.
filter needs one numerical vector or matrix as input. So use a loop:
result = cell(1, 7);
for k = 1:7
result{k} = filter(b, a, T_or_x_cycle{k});

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