zim.control function

Auxiliary for Controlling ZIM Fitting

Auxiliary function for zim fitting. Typically only used internally by zim.fit, but may be used to construct a control argument for either function.

zim.control(dist = c("zip", "zinb"), method = c("EM-NR", "EM-FS"),
  type = c("solve", "ginv"), robust = FALSE, trace = FALSE,
  start = NULL, minit = 10, maxit = 10000, epsilon = 1e-08)

Arguments

• dist: count model family.
• method: algorithm for parameter estimation.
• type: type of matrix inverse.
• robust: logical; if TRUE, robust standard errors will be calculated.
• trace: logical; if TRUE, display iteration history.
• start: initial parameter values.
• minit: minimum number of iterations.
• maxit: maximum number of iterations.
• epsilon: positive convergence tolerance.

See Also

zim, zim.fit