I’ve run Multivariate model in Stan, and I calculated Y-predicted for each Y(I have 5 Ys) and then I plotted with four chains. I don’t know how to interpret the results.
Can someone help me to interpret the plots?
This is a sample of figures and the black line is y-predict.
LKJ prior distribution is used with correlation matrix, why do use it with covariance matrix and use it with Cholesky factor?