從循環matlab中提取數據

Question

我想在這裏解決的問題是我如何提取x1，y1，x2，y2的數據，因爲我有5套這些數據由於5架飛機？數據即時得到的工作區是唯一的最後的數據，這是挑戰，對我來說，檢索所需

j = 2; 

for i = 1 : 5 % number of planes(3D matrix) 
    x1 = P(:,1,i); % x value 
    y1 = P(:,2,i); % y value 

    valid1 = y1 > 0; 
    valid_fzn1 = y1(valid1); 
    valid_time1 = x1(valid1); 

    x2 = P(:,3,i); 
    y2 = P(:,4,i); 

    valid2 = y2 > 0; 
    valid_fzn2 = y2(valid2); % getting data more than zero 
    valid_time2 = x2(valid2); % getting data more than zero 

    figure(j) 
    subplot(2,1,1) 
    plot(valid_time1,valid_fzn1,'b.') 
    title('Fzn vs time(Left Leg)') 
    xlabel('time(s)') 
    ylabel('Fzn(N)') 
    hold on 

    subplot(2,1,2) 
    plot(valid_time2,valid_fzn2,'b.') 
    title('Fzn vs time(Left Leg)') 
    xlabel('time(s)') 
    ylabel('Fzn(N)') 
    hold on 


    j = j + 1; 
    i = i + 1; 
end 

Answer 1

您可以打開在你有興趣進入細胞，以便能夠存儲其他變量的數據'層'的信息。在你的情況，我相信像下面這樣就可以了（請注意我沒能看到工作的結果，不知道P）：

j = 2; 

for i = 1 : 5 % number of planes(3D matrix) 
    x1{i} = P(:,1,i); % x value 
    y1{i} = P(:,2,i); % y value 

    valid1 = y1{i} > 0; 
    valid_fzn1 = y1{i}(valid1); 
    valid_time1 = x1{i}(valid1); 

    x2{i} = P(:,3,i); 
    y2{i} = P(:,4,i); 

    valid2 = y2{i} > 0; 
    valid_fzn2 = y2{i}(valid2); % getting data more than zero 
    valid_time2 = x2{i}(valid2); % getting data more than zero 

    figure(j) 
    subplot(2,1,1) 
    plot(valid_time1,valid_fzn1,'b.') 
    title('Fzn vs time(Left Leg)') 
    xlabel('time(s)') 
    ylabel('Fzn(N)') 
    hold on 

    subplot(2,1,2) 
    plot(valid_time2,valid_fzn2,'b.') 
    title('Fzn vs time(Left Leg)') 
    xlabel('time(s)') 
    ylabel('Fzn(N)') 
    hold on 


    j = j + 1; 
    i = i + 1; 
end