Change Defaults (Parameters) of "Psi Function" Objects
To modify an object of class psi_func,
i.e. typically change the tuning parameters, the generic function
chgDefaults() is called and works via the corresponding method.
object = "psi_func"The method is used to change the default
values for the tuning parameters, and returns an object of class
psi_func, a copy of input object
with the slot tDefs possibly changed;.
## Hampel's psi and rho: H.38 <- chgDefaults(hampelPsi, k = c(1.5, 3.5, 8)) H.38 plot(H.38) ## for more see ?psiFunc
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