how to convert structure array into matrix

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mahya pv
mahya pv 2018-8-2
编辑： Adam Danz 2018-8-2
i want to convert structure array into matrix but i get error while running this code in matlab2016 and 2017: haxes = cell2mat(struct2cell(my structure));
the error was: CELL2MAT does not support cell arrays containing cell arrays or objects.
is there anyone who can help me?

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回答（1 个）

Adam Danz
Adam Danz 2018-8-2
编辑：Adam Danz 2018-8-2
I assume the fields of your structure, 's' are cell arrays and that all of the cell arrays have the same size and are row vectors. If the fields are column vectors, some tiny adjustments will be needed.
Under these assumptions, here are two (admittedly weird) ways to convert 's' to a matrix. Simpler methods may exist.
% Fake data
s.f1 = {1 2 3};
s.f2 = {4 3 2};
Given these fake data, cell2mat(struct2cell(s)); will throw the error your described.
Option 1
sm = cell2mat(table2array(cell2table(struct2cell(s))));
Option 2
sm = cell2mat(reshape(struct2array(s), [], numel(fieldnames(s)))');
Option 2 is better.

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