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How can I solve this error (Improper assignment with rectangular empty matrix.) with listed below script. Thanks

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elevtocellsI1=accumarray(OrbNO,elev2,[],@(x) {x});
DDDD=zeros(1,size(elevtocellsI1,1));
for i=1:size(elevtocellsI1,1)
DDDD(i)=(find(elevtocellsI1{i}, 1, 'last' )-(find(elevtocellsI1{i}, 1 )))/60;
end
figure(567432)
bar(DDDD)
title('Passage Time Over the GS')
xlabel('time(Seconds)')
ylabel ('Passage Time (min)'),
grid on
  2 Comments
Oday Shahadh
Oday Shahadh on 9 Jan 2017
Improper assignment with rectangular empty matrix.
Error in BAN_FINAAl (line 710) DDDD(i)=(find(elevtocellsI1{i}, 1, 'last' )-(find(elevtocellsI1{i}, 1 )))/60;

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Accepted Answer

Walter Roberson
Walter Roberson on 9 Jan 2017
Some of the cells resulting from accumarray are likely to be empty. find(elevtocellsI1{i}, 1, 'last' ) on the empty cell is going to be empty. (find(elevtocellsI1{i}, 1, 'last' )-(find(elevtocellsI1{i}, 1 )))/60 would then be empty. You try to assign that emptiness to a definite location DDDD(i)
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