Seperate rows in matrix based on values of the elements.

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Mike Mierlo van 2020-3-2

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https://ww2.mathworks.cn/matlabcentral/answers/508461-seperate-rows-in-matrix-based-on-values-of-the-elements

评论： Mike Mierlo van 2020-3-2

采纳的回答： KALYAN ACHARJYA

在 MATLAB Online 中打开

Hi,

I have simplified my 'multiple radar' problem into this: Lets say I have matrix A, consisting of columns 1 (timestamp) and 2 (value). I want obtain matrices that have ascending timestamps and the difference between the values in column 2 of the new vectors must not be greater than 5.

%Input matrix [timestamp values]
A= [0   100;
    0   400;
    0   500;
    1   103;
    1   397;
    1   502;
    2   506;
    2   104;
    2   399];
%Now magic happens
%Output matrices per radar [timestamp values]
OUT1=   [0 100;
        1   103;
        2   104];
OUT2=   [0  400;
        1   397;
        2   399];
OUT3=   [0  500;
        1   502;
        2   506];    

Hopefully somebody can help me out of this misery

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采纳的回答

KALYAN ACHARJYA 2020-3-2

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https://ww2.mathworks.cn/matlabcentral/answers/508461-seperate-rows-in-matrix-based-on-values-of-the-elements#answer_418037

编辑：KALYAN ACHARJYA 2020-3-2

在 MATLAB Online 中打开

for i=1:length(unique(A(:,1)))
mat{i}=A(A(:,1)==i-1,:);
end
result=cell2mat(mat)
out1=reshape(result(1,:),[2,3])' % Use loop for 3 statements
out2=reshape(result(2,:),[2,3])'
out3=reshape(result(3,:),[2,3])'

# This may be possible without loop also, recomended