Operator '-' is not supported for operands of type 'timetable'.
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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 :(
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/948334/image.png)
采纳的回答
Cris LaPierre
2022-3-31
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
% 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)
% Subtract from a variable in timetable TT
TT.Temp - 5
% Your error - subtract from timetable TT
TT - 5
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