M1                      Model M1 MLE function
M2A                     Model M2A MLE function
M2B                     Model M2B MLE function
M2C                     Model M2C MLE function
M3A                     Model M3A MLE function
M3B                     Model M3B MLE function
M4A                     Model M4A MLE function
M4B                     Model M4B MLE function
M5A                     Model M5A MLE function
M5B                     Model M5B MLE function
check_data              Data Checking Function
circ_mle                circ_mle
lr_test                 Likelihood ratio test for nested models
plot_circMLE            plot_circMLE
