How to create a new variable in each iteration of the for loop?

Question

Mohamed Medhat 2021-1-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/719145-how-to-create-a-new-variable-in-each-iteration-of-the-for-loop

回答： Alan Stevens 2021-1-17

In the below code I want to trace the value of y.*win in each iteration so basically I am trying to create y_1 to y_5, the else part is the only one that has its total condition iterate and i'd rather keep it short like this but is there no solution to create the rest y_2 to y_4 without having to use elseif each time?

y = 1:10000 %for example
for winSize=[16,64,256,1024,4096]
    if winSize == 16
        win=zeros(size(y));
        win(winSize:winSize*4) = 1;
        y_1=y.*win;
    elseif winSize == 4096
            win=zeros(size(y));
            win(winSize/2:winSize) = 1;
            y_5=y.*win;
    else
        win=zeros(size(y));
        win(winSize/2:winSize*4/2) = 1;
    end
   
end

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Alan Stevens 2021-1-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/719145-how-to-create-a-new-variable-in-each-iteration-of-the-for-loop#answer_599710

One way as follows:

y = 1024; %for example
winSize=[16,64,256,1024,4096];
for i = 1:numel(winSize)
    if winSize(i) == 16
        win=zeros(size(y));
        win(winSize(i):winSize(i)*4) = 1;
        Y(i)={y.*win};
    elseif winSize(i) == 4096
            win=zeros(size(y));
            win(winSize(i)/2:winSize(i)) = 1;
            Y(i)={y.*win};
    else
        win=zeros(size(y));
        win(winSize(i)/2:winSize(i)*4/2) = 1;
        Y(i)={y*win};
    end
   
end