When i covert a structure to cell array, my fieldNames disappear

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Shambhavi Adhikari
Shambhavi Adhikari 2021-3-10
编辑： Jorg Woehl 2021-3-11
I am trying to convert a structure to a cell array, when i do that, i am not able to see field on my new cell array, i only see values. Is there a way to have both field and values on the cell array?

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回答（3 个）

Fangjun Jiang
Fangjun Jiang 2021-3-10
There is no meta data text info for cell array. Use struct2table() to convert structure to table.
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Shambhavi Adhikari
Shambhavi Adhikari 2021-3-10
Error using table.fromScalarStruct (line 480)
Fields in a scalar structure must have the same number of rows.
Error in struct2table (line 65)
t = table.fromScalarStruct(s);

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ANKUR KUMAR
ANKUR KUMAR 2021-3-10
"Is there a way to have both field and values on the cell array?"
Let us create a sample structure
S.x = linspace(0,4*pi);
S.y = cos(S.x);
You can use fieldnames and struct2cell to extract the values:
name=fieldnames(S);
value=struct2cell(S);
Jorg Woehl
Jorg Woehl 2021-3-10
编辑：Jorg Woehl 2021-3-11
Shambhavi, you can use fieldnames to extract the fieldnames from your structure and add it to the end of your new cell array. For example, taking this 1-by-2 structure array from the MATLAB documentation:
% sample structure
field1 = 'f1'; value1 = zeros(1,10);
field2 = 'f2'; value2 = {'a', 'b'};
field3 = 'f3'; value3 = {pi, pi.^2};
field4 = 'f4'; value4 = {'fourth'};
s = struct(field1,value1,field2,value2,field3,value3,field4,value4);
% write data from structure to cell array
sCell = struct2cell(s);
% add fieldnames to cell array
sCell(:,:,end+1) = fieldnames(s);
sCell(:,:,1) to sCell(:,:,end-1) now contain your data, while sCell(:,:,end) contains your fieldnames.
If you prefer to have the fieldnames listed first, in sCell(:,:,1), followed by your data in sCell(:,:,2) to sCell(:,:,end), issue the following command after the above:
sCell = circshift(sCell,1,3);

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