# Calculations for Each Table in a Cell

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Isabelle Museck am 3 Jun. 2024
Kommentiert: Isabelle Museck am 3 Jun. 2024
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]
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.
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### Akzeptierte Antwort

Matt J am 3 Jun. 2024
Bearbeitet: Matt J am 3 Jun. 2024
for i =1:numel(CoPyData)
Trial = CoPyData{i};
CoPv_y = diff(Trial.Displacement)./diff(Trial.Time);
CoPv = [zeros(1);CoPv_y];
end
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Matt J am 3 Jun. 2024
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];
CoPyData{i}= double(T{:,:});
end
Isabelle Museck am 3 Jun. 2024
Thank you so much!

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