How to store value in the table using looping

Question

Yew Jen Chong 2022-6-22

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1745475-how-to-store-value-in-the-table-using-looping

评论： Yew Jen Chong 2022-6-24

Hi,

I want to store data in a table using looping. I am trying to store all the value of each iteration in the table but it can only store the values of the last iteration. The coding below is what I tried.

for n = 1:3
    Table.Data_A = DataA;
    Table.Data_B = DataB;
    Table.Data_C = DataC;
    Table(n,;) = Table;
end

I will appreciate if someone can help me.

Thank you.

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Answer 1

Karim 2022-6-22

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https://ww2.mathworks.cn/matlabcentral/answers/1745475-how-to-store-value-in-the-table-using-looping#answer_990790

编辑：Karim 2022-6-23

在 MATLAB Online 中打开

hello, below you can find an example on how to store data in a table in a loop

numLoop = 10; % indicate the number of loops...
numCol = 3; % indicate the number of columns for the table... 
% generate some random data
DataA = 1:numLoop;
DataB = rand(numLoop,1);
DataC = ["A","B","C","D","E","F","G","H","I","J"];
% allocate the table
varTypes = ["double","double","string"]; % data type for each column
varNames = ["DataA","DataB","DataC"]; % variable name for each column
MyTable = table('Size',[numLoop numCol],'VariableTypes',varTypes,'VariableNames',varNames);
% perfom the loop
for n = 1:numLoop
    % store data in the table
    MyTable(n,:) = {DataA(n), DataB(n), DataC(n)};
end
% display the result
MyTable

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Edit: next to the orginal example, i also added modified the code with the later added example data and script, see attachment

@Yew Jen Chong: the code is to slow to run here, however below you can find the print screens of the result run locally (the code is in attachement)