MATLAB: How to multiple elements of a table

linear regressiontable

I am trying to create a simple linear regression model. a.csv contains 8 columns. Var1 month dow Hour is_holiday T load Date. I get an error at X = ones… it says undefined unction times for input arguments of type table.
   T = readtable('a.csv')
    x1 = T(:, 6);
    x2 = T(:,3);
    y = T(:,7);
    X = [ones(size(x1)) x1 x2 x1.*x2];
    b = regress(y,X)

Best Answer

To get data from the column of a table you must refer to the column by name, e.g.
 T =
3×2 table
    a    b
    _    _
    1    4
    2    5
    3    
>> T.b
 ans =
     4
     5
     6
Related Question