[NMusers] Handling BLQ data

Hi All,

I think I may be digging up an old discussion here but I can't see any =
update relating to version VI...

I've got some data where some observations are marked as BLQ. Looking =
through the documentation it seems that BLQ observations can be used by =
specifying a interval in which the observation must sit, for example 0 =
to LOQ. The likelihood of the observation is then calculated using this =
interval. These boundaries can be set using YLO and YUP in $ERR. From =
trial and error it seems that these should only be set for BLQ =
observations by using IF (DV.LT.LOQ) YUP=LOQ etc in $ERR.

Is this correct? Also, according to the documentation there are CTLO and =
CTUP that seem to have similar descriptions. What's the difference?

Regards

James

Received on Tue Mar 11 2008 - 12:18:46 EDT