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How to convert a structure into a individual double elements

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Artu on 25 Jun 2012
Edited: Stephen on 25 Mar 2021
Hello all,
I have a structure containing ten "8760x1 double" I need to do some descriptive statistical analysis for each group of data. I want to convert this structure into ten dettached differents elements. How can I do this? I have tried struct2cell and I get one 10x1 cell but then I don't know how to dettach each group of data out of this.
Thanks for your help!

Accepted Answer

Image Analyst
Image Analyst on 25 Jun 2012
Why not just simply do
vector1 = yourStruct.vector1;
vector2 = yourStruct.vector2;
vector3 = yourStruct.vector3;
vector4 = yourStruct.vector4;
vector5 = yourStruct.vector5;
vector6 = yourStruct.vector6;
vector7 = yourStruct.vector7;
vector8 = yourStruct.vector8;
vector9 = yourStruct.vector9;
vector10 = yourStruct.vector10;
which is very easy, intuitive, and straightforward?
  1 Comment
T Path
T Path on 12 Dec 2015
I had a bit of a rough time loading data from a .mat file. This method works like a charm.

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More Answers (6)

grapevine on 25 Jun 2012
there are different ways to sort out your issue
you might use:
C= struct2cell(s)
and then
A= cell2mat(C)
another way is to write a small code with a loop to copy all the elements of the structure in an array, for example
s = struct('f1', [1, 3, 2, 4])
for i=1:1:lenS
a=[ a s(f1)]
good luck

Andrei Bobrov
Andrei Bobrov on 25 Jun 2012
Try this is code
A = struct2cell(yourstructdata);
out = cat(2,A{:});

Irwansyah Ramadhani
Irwansyah Ramadhani on 5 Jun 2016
I have a struct 2x1 and I want to write it's contain to excel directly. So, I want to ask the way to do it. Thank you
  1 Comment
Image Analyst
Image Analyst on 5 Jun 2016
Call xlswrite for each member of the structure. You have to get a numerical array or a cell array of strings. If you don't know how to do that then tell us what the structure of your structure is.
Also, you might read this: the FAQ

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Mayss Aliyeh
Mayss Aliyeh on 19 May 2017
What if in the struct I have 7 fields, and all of them are different sizes of doubles? I want to use them for the svmtrain. How can I solve my problem?

Mark Brandon
Mark Brandon on 5 Dec 2017
Consider a struct A, with fields a and b, each with a column of elements. You can convert the fields into column vectors using the following:
aVec = [A.a(:)] bVec = [A.b(:)]

Mohammad Basil
Mohammad Basil on 23 Mar 2021
How to change struct 1x2 to double 1x1?
Stephen on 24 Mar 2021
"How to change struct 1x2 to double 1x1?"
Clearly this is a MATLAB riddle, which is rather nice. One solution is:
'struct 1x2'
ans = 'struct 1x2'
ans(:) = ans-[15,5,-3,19,-9,15,0,0,0,1]
ans = 'double 1x1'
Note how it changes the data, exactly as requested. CODY enthusiasts can add their own solutions.

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