How to solve this error index in position 1 exceeds array bounds?

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Hi,
How I can correct this error?
Index in position 1 exceeds array bounds (must not exceed 128).
Error in Create_Obs_dataL (line 60)
synth = synth(1+t0_i:nt+t0_i,:);

Accepted Answer

Cris LaPierre
Cris LaPierre on 26 Jan 2022
The error is that your indexing of rows (specifically nt+t0_i), is resulting in a number higher that the total number of rows in your matrix. Here's a simple example:
A = rand(2,1)
A = 2×1
0.8538 0.6416
% Works
A(2,1)
ans = 0.6416
% Your error
A(3,1)
Index in position 1 exceeds array bounds. Index must not exceed 2.
  6 Comments
Cris LaPierre
Cris LaPierre on 26 Jan 2022
nt = 115;
f0 = 50;
t0 = 2/f0;
dt = 0.001;
t0_i = floor(t0/dt)
t0_i = 40
nt+t0_i
ans = 155
Apparently your matrix has 128 rows, and you are trying to access the 155th, hence the error. Your equation does not appear to scale correctly with nt. You need to figure out what the correct value should be, and adjust your math accordingly.

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