struct2cell - Convert structure to cell array - MATLAB (original) (raw)
Main Content
Convert structure to cell array
Syntax
Description
`C` = struct2cell([S](#mw%5F778236c5-12bc-44a8-8ecb-69f058c49039)) converts a structure into a cell array. The cell array C contains values copied from the fields of S.
The struct2cell function does not return field names. To return the field names in a cell array, use the fieldnames function.
Examples
Create a structure.
S.x = linspace(0,2*pi); S.y = sin(S.x); S.title = 'y = sin(x)'
S = struct with fields: x: [0 0.0635 0.1269 0.1904 0.2539 0.3173 0.3808 0.4443 0.5077 0.5712 0.6347 0.6981 0.7616 0.8251 0.8885 0.9520 1.0155 1.0789 1.1424 1.2059 1.2693 1.3328 1.3963 1.4597 1.5232 1.5867 1.6501 1.7136 1.7771 1.8405 1.9040 1.9675 … ] (1×100 double) y: [0 0.0634 0.1266 0.1893 0.2511 0.3120 0.3717 0.4298 0.4862 0.5406 0.5929 0.6428 0.6901 0.7346 0.7761 0.8146 0.8497 0.8815 0.9096 0.9341 0.9549 0.9718 0.9848 0.9938 0.9989 0.9999 0.9969 0.9898 0.9788 0.9638 0.9450 0.9224 … ] (1×100 double) title: 'y = sin(x)'
Convert S to a cell array.
C=3×1 cell array {[ 0 0.0635 0.1269 0.1904 0.2539 0.3173 0.3808 0.4443 0.5077 0.5712 0.6347 0.6981 0.7616 0.8251 0.8885 0.9520 1.0155 1.0789 1.1424 1.2059 1.2693 1.3328 1.3963 1.4597 1.5232 1.5867 1.6501 1.7136 1.7771 1.8405 1.9040 1.9675 2.0309 2.0944 2.1579 2.2213 2.2848 2.3483 2.4117 2.4752 2.5387 2.6021 2.6656 2.7291 2.7925 2.8560 2.9195 2.9829 3.0464 3.1099 3.1733 3.2368 3.3003 3.3637 3.4272 3.4907 3.5541 3.6176 3.6811 3.7445 3.8080 3.8715 3.9349 3.9984 4.0619 4.1253 4.1888 4.2523 4.3157 4.3792 4.4427 4.5061 4.5696 4.6331 4.6965 4.7600 4.8235 4.8869 4.9504 5.0139 5.0773 5.1408 5.2043 5.2677 5.3312 5.3947 5.4581 5.5216 5.5851 5.6485 5.7120 5.7755 5.8389 5.9024 5.9659 6.0293 6.0928 6.1563 6.2197 6.2832]} {[0 0.0634 0.1266 0.1893 0.2511 0.3120 0.3717 0.4298 0.4862 0.5406 0.5929 0.6428 0.6901 0.7346 0.7761 0.8146 0.8497 0.8815 0.9096 0.9341 0.9549 0.9718 0.9848 0.9938 0.9989 0.9999 0.9969 0.9898 0.9788 0.9638 0.9450 0.9224 0.8960 0.8660 0.8326 0.7958 0.7557 0.7127 0.6668 0.6182 0.5671 0.5137 0.4582 0.4009 0.3420 0.2817 0.2203 0.1580 0.0951 0.0317 -0.0317 -0.0951 -0.1580 -0.2203 -0.2817 -0.3420 -0.4009 -0.4582 -0.5137 -0.5671 -0.6182 -0.6668 -0.7127 -0.7557 -0.7958 -0.8326 -0.8660 -0.8960 -0.9224 -0.9450 -0.9638 -0.9788 -0.9898 -0.9969 -0.9999 -0.9989 -0.9938 -0.9848 -0.9718 -0.9549 -0.9341 -0.9096 -0.8815 -0.8497 -0.8146 -0.7761 -0.7346 -0.6901 -0.6428 -0.5929 -0.5406 -0.4862 -0.4298 -0.3717 -0.3120 -0.2511 -0.1893 -0.1266 -0.0634 -2.4493e-16]} {'y = sin(x)' }
The cell array does not include field names. To return the field names in a cell array, use the fieldnames function. fieldnames and struct2cell return the field names and the values in the same order.
fields = 3×1 cell {'x' } {'y' } {'title'}
Input Arguments
Input structure array. S can be a structure array of any size. IfS is an m-by-n structure array with p fields, then C is ap-by-m-by-n cell array.
Extended Capabilities
Usage notes and limitations:
- If
Sis a variable-size array of structures, then each field of every element must have the same type. Heterogeneous cell arrays cannot be variable-size. - For a fixed-size array of structures
S, ifstruct2cellcannot convertSto a homogeneous cell array, then the output cell array is heterogeneous. A heterogeneous output cell array can have a maximum of 1024 elements.
Version History
Introduced before R2006a