A column vector with words

I am trying to get an SVM working, for that i need a column vecotor of lables. My first attempt resulted in the input of 'F' and 'H' being turned into numbers (this is the only thing that would not result in an error message.

I want a colum of words, names 'Friendly' and 'Hostile'

The simplified version of what I've got:

>> A=zeros(10,1);

>> A(1:5)='F';

>> A(6:10)='H';

>> A

A =

70

70

70

70

70

72

72

72

72

72

Answer 1

[Cris LaPierre]

All values in your variable must be of the same datatype. By creating your variable with the zeros function, you define A as being of type double, When you add a 'F' and 'H' to A, you are getting the ascii character code for those letters.

If you want to store letters or words, then your variable must be of type char or string.

A=strings(10,1);
A(1:5)='F';
A(6:10)='H'

A = 10×1 string array
    "F"
    "F"
    "F"
    "F"
    "F"
    "H"
    "H"
    "H"
    "H"
    "H"