Subscript indices must either be real positive integers or logicals.

Hai,

May i ask what is actually means when I run the program and I got this msg

Subscript indices must either be real positive integers or logicals.

Error in ext2int (line 149)

brs = ( mpc.branch(:, BR_STATUS) & ... %% branch status

Error in runpf (line 111)

mpc = ext2int(mpc);

Error in BPSO69 (line 12)

loadflow=runpf(data1);

>>

[Aaina]

the mpc.branch for this file is:

%% branch data

% fbus tbus r x b rateA rateB rateC ratio angle status angmin angmax

mpc.branch = [

1 2 0.00003120 0.00007487 0.00000000 999 999 999 0 0 1 -360 360

2 3 0.00003120 0.00007487 0.00000000 999 999 999 0 0 1 -360 360

3 4 0.00009359 0.00022461 0.00000000 999 999 999 0 0 1 -360 360

Answer 1

[KSSV]

YOu are giving negative or zero index to extract a element from matrix.

A = rand(10) ;
A(1,1)   % no error 
A(10)     % no error 
A(0)      % error 
A(-1)   % error
A(0.5)   % error

Read about MATLAB matri xindexing. Note that MATLAB indces start from 1 and they are positive integers

[Aaina]

Thak you so much for your comment.

Actually I tried to access the matrix which not exist. Therefore, it was error.

Answer 2

[Ali H. Mohammed]

Hi everyone

Same problem with me, can you share the solution with me?? please