Filter löschen
Filter löschen

store all array values in a field to a variable

4 Ansichten (letzte 30 Tage)
Rakesh Praveen
Rakesh Praveen am 28 Jan. 2014
Kommentiert: Azzi Abdelmalek am 28 Jan. 2014
I have a test.mat file which contains 1x10 struct array values with 5 fields. The first field 'f' ie,. 'test.f' contains struct array with a dimension of [2x1 double]. I wanted to store all these 10 [2x1 double] values to another variable 'f_vec'. I tried 'getfield'
f_vec = getfield(test,'f')
but it gives out only 1 [2x1 double] value and not all the values from the struct array. when I tried the below command, I got an error.
f_vec = test.f(1,:)
??? Field reference for multiple structure elements that is followed by more
reference blocks is an error.
So all I wanted to do is to store all the [2x1 double] values from 'f' to f_vec. How do I do it ? Thank you.

Akzeptierte Antwort

Walter Roberson
Walter Roberson am 28 Jan. 2014
f_vec = horzcat( test.f ); %would give you 2 x length(test) array

Weitere Antworten (1)

Azzi Abdelmalek
Azzi Abdelmalek am 28 Jan. 2014
Bearbeitet: Azzi Abdelmalek am 28 Jan. 2014
v=struct('a',num2cell(1:10)','f',num2cell(rand(2,10),1)')
out=reshape([v.f],2,10)'
  2 Kommentare
Rakesh Praveen
Rakesh Praveen am 28 Jan. 2014
when I tried your solution, i had an error saying: 'To RESHAPE the number of elements must not change'. walter solution fixed my problem.
Azzi Abdelmalek
Azzi Abdelmalek am 28 Jan. 2014
Because you didn't adapt my code to your problem.

Melden Sie sich an, um zu kommentieren.

Kategorien

Mehr zu Structures finden Sie in Help Center und File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by