how do I create a table in a nested loop

Question

hanife gürdal 2021-4-25

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/812720-how-do-i-create-a-table-in-a-nested-loop

评论： Stephen23 2023-9-21

there are nested for loops. I want to save them(sonuc) in the table.

I want to create a table with the 'sonuc' data, I want to see all the data in the same place, but it is repeated because it is in the loop.

Thank you very much in advance

clc
clear
mu0=10.5; sigma=1; alfa=0.05;den=1000;
n=10;nson=50;topz=0;topt=0
for mu0=10.5:0.5:11.5
    mu0;
    for n=10:10:nson
    n;
    for i=1:den
    x1=normrnd (mu0,sigma,1,n);
    x2=trnd(mu0,n-1);
    [rz, pz, zh]= ztesti (x1,mu0,sigma,alfa);
    [rt, pt, th]= ttesti (x2,mu0,alfa);
    
    
    end
topz=topz+rz;
topt=topt+rt;
roz=topz/den;
rot=topt/den;
sonuc = [mu0, n, roz, rot]
end
end

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Answer 1

Vishesh 2023-9-21

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https://ww2.mathworks.cn/matlabcentral/answers/812720-how-do-i-create-a-table-in-a-nested-loop#answer_1314787

在 MATLAB Online 中打开

Hi @hanife gürdal,

I understand that you want to create a table to save "sonuc" variable value that is getting updated within a "for" loop.

You can achieve this using following steps:

Create a empty table and set its header name as "mu0","n","roz" and "rot".
Add the updated values of "sonuc" to the table inside the "for" loop.

The updated script, after adding above steps, is provided below:

clc
clear
mu0=10.5; 
sigma=1; 
alfa=0.05;
den=1000;
n=10;
nson=50;
topz=0;
topt=0;
header={'mu0','n','roz','rot'}; % header of the table
sonuc=cell2table(cell(0,4),'VariableNames',header); % empty table
for mu0=10.5:0.5:11.5
    mu0;
    for n=10:10:nson
    n;
    for i=1:den
    x1=normrnd (mu0,sigma,1,n);
    x2=trnd(mu0,n-1);
    [rz, pz, zh]= ztesti (x1,mu0,sigma,alfa);
    [rt, pt, th]= ttesti (x2,mu0,alfa);
    
   
    end
topz=topz+rz;
topt=topt+rt;
roz=topz/den;
rot=topt/den;
sonuc = [sonuc;table(mu0, n, roz, rot,'VariableNames',header)]; % adding data to the table.
end
end