For "ilse", print the basic information of ilse estimation and algorithm and return a list including
betaa named vector of coefficients
Bmata named matrix that summary the estimated beta in every iteration.
residualsthe residuals, that is response minus fitted values.
fitted.valuesthe fitted mean values.
d.fna nonnegative value, vlaue of relative variation rate of objective function value
d.para nonnegative value, relative variation rate of estimated parametric vector when algorithm stopped.
Ka positive integer, iterative times in total.
For "fiml", print the basic information of fiml estimation and return a list including
betaA named vector of coefficients
iterationsA positive integer, iterative times in total.
stop.codeThe stop code returned by nlm.