Simulate continous model at predetermined time (Simulink)

Hi

I have a set of data points [Time,Angle] of length about 45,000 .I need to compare this data against my model, to determine how accurate it is, using Coefficient of determination (R).

I've simulated my model for the same time period (50 seconds), with a fixed step, trying to achieve about 45k points, and exported the data. since the time of the original data and simulated time is not identical i have to either:

a. compare values of "Original" Vs "Estimated" at indeces from 1 to 45000, with error coming from time being different Or

b. compare values of "Original" Vs "Estimated" at time points not too far apart. such as (t_data - t_model<0.01sec).

is there a simpler way to accomplish that? I've thought of using a time vector as input but hav'nt found a way.

Any help would be much appreciated

Answer 1

[Fangjun Jiang]

If you can't really make the two sets of data have the same time samples, then you can utilize resample().