This dataset records counts of surface faults (\(X\)) and interior faults (\(Y\)) observed in 100 optical lenses
lensfaultsA data frame with 100 rows and 2 variables:
Number of surface faults in a lens.
Number of interior faults in the same lens.
Aitchison, J., & Ho, C. H. (1989). The multivariate Poisson-log normal distribution. Biometrika, 76(4), 643–653.
Ghosh, I., Marques, F., & Chakraborty, S. (2021). A new bivariate Poisson distribution via conditional specification: properties and applications. Journal of Applied Statistics, 48(16), 3025-3047. tools:::Rd_expr_doi("10.1080/02664763.2020.1793307")