How a table columns are named using MATALB

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C PRASAD
C PRASAD on 5 Mar 2022
Commented: Simon Chan on 11 Mar 2022
I have a fetaure table with 5*10 size.Now I woul like to name each of the Coloumns
I would like to name ecah coloumn and also again 5 coloumn need to give name with Title1 as shown below.Please help me using MATLAB
  1 Comment
Stephen23
Stephen23 on 5 Mar 2022
Adding "headers" (i.e. column/variable names) is easy if you convert the data to a table: https://www.mathworks.com/help/matlab/ref/array2table.html
However a heirarchy of column/variable names like you show is not possible in one table :https://www.mathworks.com/matlabcentral/answers/541568-nested-tables-with-duplicate-sub-column-names
You could create nested tables, but that does complicate accessing and processing your data.

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Accepted Answer

Simon Chan
Simon Chan on 5 Mar 2022
Something like the following may be similar to what you want.
clear; clc;
combine_vector = randi(10,5,10);
Title1 = array2table(combine_vector(:,1:5),'VariableNames',compose('feature%d',1:5));
Title2 = array2table(combine_vector(:,6:10),'VariableNames',compose('Sfeature%d',1:5));
T = table(Title1,Title2)
T = 5×2 table
Title1 Title2 feature1 feature2 feature3 feature4 feature5 Sfeature1 Sfeature2 Sfeature3 Sfeature4 Sfeature5 ________________________________________________________ _____________________________________________________________ 1 9 10 6 3 5 2 9 2 4 3 10 4 8 10 4 10 10 4 4 2 6 1 8 7 4 7 5 8 5 6 2 2 8 7 2 6 8 6 2 6 6 10 2 9 2 4 8 2 8
  8 Comments
Simon Chan
Simon Chan on 11 Mar 2022
There is no need to save them in different variables. Stephen's recommendation is absolutely right.
In case you would like to use data on column 1,6,11. You can directly retrieve them from the variable combine_vector as follows:
combine_vector = randi(10,28,75);
combine_vector(:,[1 6 11])
ans = 28×3
8 4 10 9 6 10 1 7 1 9 7 4 8 3 2 5 2 6 8 3 10 3 8 4 10 10 10 4 3 8

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