Vertically Concatenating Tables in a Loop

Question

Isabelle Museck 2024-3-26

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2098861-vertically-concatenating-tables-in-a-loop

回答： Chunru 2024-3-26

Hi there I am trying to perform a calculation on variables in each trial of a data set and add it to the table and concationte the tables with caluclated variables over the course of 10 trials. So far I have this code

for m = 1:10

Trial = [COPData(m).data,OPALData(m).data]; %Original Table

COPTv_y = diff(Trial.COPy)./diff(Trial.Time); %Center of pressure calcualtion velocity in y-direction

Table = addvars(Trial,COPTv_y,'NewVariableNames',{'CoP_velocity'}); %adds new CoPv clalcuation to table

end

but it just produces 10 seperate tables in the workspace all named "Table" and I was to stack the tables on top of eachother so it contains all the data including the new calucalted variable across the 10 tirals. Any help is greatly appreciated! Thank you so much!

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Answer 1

Chunru 2024-3-26

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2098861-vertically-concatenating-tables-in-a-loop#answer_1430921

在 MATLAB Online 中打开

TableAll = [];
for m = 1:10
    Trial = [COPData(m).data,OPALData(m).data]; %Original Table
    COPTv_y = diff(Trial.COPy)./diff(Trial.Time); %Center of pressure calcualtion velocity in y-direction
    T = addvars(Trial,COPTv_y,'NewVariableNames',{'CoP_velocity'}); %adds new CoPv clalcuation to table
    TableAll = [TableAll; T];    % append T to TableAll
end