search for: usul

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2005 Aug 12
0
HowTo derive a correct likelihood-ratio chi-squared statistic from lrm() with a rsc() ?
...prox for the L.R. model? (see function below) dAIC <- function(fit){ logl <- oos.loglik(fit) # derive -2*logL of the model k <- 2 edf <- fit$stats[4] # 'edf' is the equivalent degrees of freedom (i.e., the number of parameters for usul parametric models) of 'fit'. lrmAIC <- logl + k*edf return(lrmAIC) } Best regards, Jan _______________________________________________________________________ Ir. Jan Verbesselt Research Associate Group of Geomatics Engineering Department Biosystems...
2007 Oct 31
0
forecasting multiple regression model
Hi all, Does anyone have the knowledge to help me identify a package capable of forecasting a MULTIPLE regression model? i have a model with one one dependant variable and 4 independant variables. i would like to forecast confidence intervals for a few steps ahead...(DENSITY forecasting). PS i can forecast a univariate vector, with package 'forecast', however, i want one that can do