Index in position 1 exceeds array bounds.

while trying to run this code an error occurs due to the first line (Happy ) and it says that

Index in position 1 exceeds array bounds.

Happy = [trainf(1,:);trainf(3,:);trainf(5,:);trainf(6,:);trainf(15,:);trainf(16,:)];

Surprise = [trainf(2,:);trainf(4,:);trainf(7,:);trainf(8,:);trainf(17,:);trainf(18,:)];

Sad = [trainf(9,:);trainf(10,:);trainf(11,:);trainf(12,:);trainf(19,:)];

Anger = [trainf(13,:);trainf(14,:);trainf(20,:)];

[DGM]

How many rows are in trainf? Is it less than 16?

[Maryam Almannaee]

there is no rows, when I wrote trainf in the command window I got the below result

trainf =

[]

[DGM]

Well then there you go. You can't extract rows that don't exist.

Answer 1

[Navya Singam]

Hi Maryam,

As the trainf is an empty matrix i.e trainf=[], and you are trying to refer to the rows of an empty matrix, the code is throwing an error. Try by initializing the trainf matrix with the data and the code may work.