9 Feb
2011
9 Feb
'11
10:37 p.m.
Hi Everyone,
I used amelia to run an imputation and I was wondering if there was a
standard on how consistant the chain lengths should be for each imputation.
I did 10 imputations, and some ranged between 10-12 iterations while other
took between 180-400. The tolerance was .001 and I set the ridge prior to be
5% of the observations. Are these differences ok or do I need to change
something to try and get the imputations more equal. The data set has 127
observations with 6 measures that are repeatedly measured over 3 time
points.
Thanks for your help!
Sivan