p_tol    <- 1e-04  # user-defined tolerance (for p-values and and ci bounds)
stat_tol <- 1e-04  # user-defined tolerance (for test statistics)
df_tol   <- 1e-01  # user-defined tolerance (for df)
m_tol    <- 0      # user-defined tolerance (for m)
emp_sca  <- 50     # scaling factor for p_tol when using 'empirical' methods

# p_tol    <- 0.1
# stat_tol <- 0.1
# df_tol   <- 0.1
# df_m     <- 0