match and merge data between multiple structures and single structures

Question

nlm 2019-3-8

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/449045-match-and-merge-data-between-multiple-structures-and-single-structures

编辑： nlm 2019-3-8

Hi,

I have one strcuture (A) which needs to be matched (if meets certain criteria) with a field "new" (which is 30000*15) from multiple other structures (B01, B02, B03...B036) which are huge (266*1). Once the criteria is met, I want to store the data from B01.new(:,7) struture into A with a new field 'SS'. I can do this for a single strcuture, but unable to do with multiple strcutures. Loading more than two B structures, causes out of memory. So I want to load one B strcuture, search, match and clear, and load next B structure, etc.... Any help is highly appreciated !

My code for one strcuture match is following:

load('A.mat')
load('B01.mat');
empty =[];
for  ii = 1:length(A)
    for jj = 1: length(B01)
        for kk = 1:length(B01(jj).new)
            if A(ii).DOY==B01(jj).new(kk,13) && (sqrt(((A(ii).Lat-B01(jj).new(kk,5)).^2)+((A(ii).Lon-B01(jj).new(kk,6)).^2))<=0.325)  && A(ii).HHMMSS==B01(jj).new(kk,14) <= 25959
                tmp1 = B01(jj).new(kk,7);
                empty = [empty, tmp1];
                A(ii).SS = empty';
                clear tmp1
            end 
        end 
    end
empty =[];
end 