Getting the error "Subscript indices must either be real positive integers or logicals" when it is a postive integer

I continue to throw an error "Subscript indices must either be real positive integers or logicals". If I am to replace the variable "IC_Time_SagitalAnkleKinematics" with the value that it stands for (which is a frame number, so always a whole number) the code works fine. Any ideas why this would be happeneing?

Appreciate the help

CB

for i=1:n
IC_Time_SagitalAnkleKinematics((1:1),i)=IC(i,1)*200;
FC_Time_SagitalAnkleKinematics((1:1),i)=FC(i,1)*200;
    IC_SagitalAnkleKinematics(1,i)=SagitalAnkleKinematics(IC_Time_SagitalAnkleKinematics,i);
    FC_SagitalAnkleKinematics(1,i)=SagitalAnkleKinematics(FC_Time_SagitalAnkleKinematics,i);
end

Answer 1

[the cyclist]

Are you certain the value of that variable is exactly a whole number, and not something like

3.0000000000001

?

To debug this, you could

• put a breakpoint at the spot in the code where the error occurs (or use "dbstop if error")
• set the command window display format to show more precision (e.g. "format long")
• see what that variable looks like