How to fix this error please?

Error using eye

Requested 57660x57660 (24.8GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause

MATLAB to become unresponsive. See array size limit or preference panel for more information.

Error in Ex11_Bayes_AVO_Inversion (line 79)

Sigma_e = var_e*eye(nt*ntheta); % White noise covariance

[Walter Roberson]

What is the value of nt*ntheta?

Perhaps speye() would make more sense.

[Nisar Ahmed]

ntheta is 30 or 31 here

[Walter Roberson]

okay but we don't know nt

We also don't know how nt or ntheta are calculated in order for us to assess if the values are necessarily that high

[Nisar Ahmed]

Here nt is 1922.

nt is 1922 for each ntheta (1 to 30). how this issue can be resolved?