Hi, I tried to manage exponential family state-space model with the packages KFAS and sspir. The problem is that my data set includes some NA observation and it seems not working. Any suggestion? Thanks in advance, Federico -- View this message in context: http://r.789695.n4.nabble.com/NA-values-in-package-KFAS-or-SSPIR-tp3027877p3027877.html Sent from the R help mailing list archive at Nabble.com.