v 1.5 1. Add the Laplace-Metropolis estimator and candidate estimator methods to compute log marginal likelihood v 1.4 1. Change the prior choice of bandwidths 2. Now use the adaptive random-walk Metropolis algorithm v 1.3 1. Add the Nadaraya-Watson type kernel 2. Add the Priestley-Chao type kernel 3. Add the Gasser-Muller type kernel v 1.2 1. Add the ker function to compute different types of kernel functions 2. Update some functions accordingly v 1.1 1. Add the package dependency 2. Add the Gaussian error in the package title 3. Update the email address v 1.0 1. Package has built