I have been trying the following commands, but I could not, and got that error, (I got that error, Subscript indices must either be real positive integers or logicals.),
& also, when type length of (i) it equals =-30, how ?, and I have 3 variables ?
actually, I hope to have 3 variables (one at i =90, and another =30, and so on ]
So please could you tell me how could I do this ?