c_out_dep: Object class constructor
In estsyawo/RpacSPD: Spatial Panel Data models

This function constructs an object class for the generic function out_dep()

1	c_out_dep(lc, eta = NULL, modclass = "lmcd")

`lc`	linear combination ‘lc = X’beta'
`eta`	for models needing extra parameter besides beta in the linear combination `lc`. eta can be a vector. For "lmcd", `eta` is the vector of errors; must of the same length as Y For "nbcd", `eta` must be a vector of two elements; the first one is parameter `th` and the second is the seed for random generation. For other classes, eta is the seed for random generation.
`modclass`	the class of model. Currently "lmcd" for linear regression, "logitcd" (logit model), "poiscd" (poisson model), "probitcd" (probit model), "nbcd" (negative binomial) are supported.