MATLAB: Extracting data from matlab struct

struct

I have a data structure vector "A" = <1x24struct> that is 24sets long of these variable six fields:

br: 38.6890
br1: 234.2153
br2: 38.3359
br3: 232.9991
br4: 733857
date: 733976

How do I extract all the br values into one 1×24 vector?

I've used A.br(1:24) but can't work,

Thank you in advance for your help

Best Answer

[A.br]

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MATLAB: Extract data from large file

Use the example below. Be careful about the Data(:,1)==37.1234 comparison though as it involves floating point. You may need to use abs(Data(:,1)-37.1234)<eps instead.

Data=[37.4321 8.9823 5
37.4321 8.9850 7
37.1234 7.6763 8
37.4321 8.9823 8
37.4321 8.9850 3
37.1234 7.6763 5];
Index=and(Data(:,1)==37.1234,Data(:,2)==7.6763);
MyData=Data(Index,3)

MATLAB: Error using horzcat- dimensions of matrices being concatenated are not consistent

When I did this, the ‘A’ assignment did not throw any error:

br = 1:10;
A = [(br'.^2), br',ones(length(br)',1)];

My guess is that you transposed ‘br’ to a column vector somewhere else.

Just before the ‘A’ assignment, put:

sbr = size(br)

and see what the dimensions of ‘br’ are.

Best Answer

Related Solutions

MATLAB: Extract data from large file

MATLAB: Error using horzcat- dimensions of matrices being concatenated are not consistent

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