Calculations for Each Table in a Cell

Hello I have displacement and time data from 10 different trials stored as tables in a 10x1 cell. I am trying to calculate the velocity for each of the trials and store the data as a DOUBLE rather than a a table in a 10x1 cell.

Say CoPyData is the 10x1 cell with the 10 tables containing the time and displacement data. My code so far is:

CoPvAll = {}
for i =1:numel(CoPyData)
    Trial = CoPyData{i,1}
    CoPv_y = diff(Trial.Displacement)./diff(Trial.Time)
    CoPv = [zeros(1);CoPv_y]
    T = addvars(Trial,CoPv)
    CoPvAll = {CoPvAll,T}
end

however this code is not correctly storing the data/calculated velocity back into a 10x1 cell and I am not sure how to convert the data from tables to doubles. Any help is greatly appreciated.

Answer 1

[Matt J]

for i =1:numel(CoPyData)
    
    Trial = CoPyData{i};
    CoPv_y = diff(Trial.Displacement)./diff(Trial.Time);
    CoPv = [zeros(1);CoPv_y];
    CoPyData{i} = addvars(Trial,CoPv);

end

[Isabelle Museck]

Thank you so much! This worked in creating the cell with the new calculated value but there is any way to turn the 10 tables stored in the 10x1 cell into doubles?

[Matt J]

Assuming your table data is purely numeric, you can do as follows,

for i = 1:numel(CoPyData)
    
    Trial = CoPyData{i};
    CoPv_y = diff(Trial.Displacement)./diff(Trial.Time);
    CoPv = [zeros(1);CoPv_y];
    T = addvars(Trial,CoPv);
    
    CoPyData{i}= double(T{:,:});

end

[Isabelle Museck]

Thank you so much!