Operator '-' is not supported for operands of type 'timetable'.

Operator '-' is not supported for operands of type 'timetable'.

Error in kppvg (line 23)

dist = sum((repmat(vc(i,:),nb_vD,1)-D).^2,2);%calcul dist^2

Error in main (line 53)

[ind_vp,dist_vp,c]=kppvg(X,Xtest,u(i),[1 2 3 4 5]);

hello, i have this problem when i excute my KNN program please can anyone help me :(

[Nassim CHERIF]

Answer 1

[Cris LaPierre]

A timetable holds several variables of different data types. You must specify which variable in your timetable you want to subtract from.

See this page on how to Access Data in Tables

Borrowing an example from the timetable documentation:

% Create the timetable
MeasurementTime = datetime({'2015-12-18 08:03:05';'2015-12-18 10:03:17';'2015-12-18 12:03:13'});
Temp = [37.3;39.1;42.3];
Pressure = [30.1;30.03;29.9];
WindSpeed = [13.4;6.5;7.3];
TT = timetable(MeasurementTime,Temp,Pressure,WindSpeed)

TT = 3×3 timetable
      MeasurementTime       Temp    Pressure    WindSpeed
    ____________________    ____    ________    _________

    18-Dec-2015 08:03:05    37.3      30.1        13.4   
    18-Dec-2015 10:03:17    39.1     30.03         6.5   
    18-Dec-2015 12:03:13    42.3      29.9         7.3   

% Subtract from a variable in timetable TT
TT.Temp - 5

ans = 3×1

32.3000 34.1000 37.3000

% Your error - subtract from timetable TT
TT - 5

Operator '-' is not supported for operands of type 'timetable'.