TITLE: this is an example of an N=1 time series analysis
with a first-order autoregressive AR(1)
IRT model with binary factor indicators
DATA: FILE = ex6.27.dat;
VARIABLE: NAMES = u1-u4;
CATEGORICAL = u1-u4;
ANALYSIS: ESTIMATOR = BAYES;
PROCESSORS = 2;
BITERATIONS = (2000);
MODEL: f BY u1-u4*(&1);
f@1;
f ON f&1;
OUTPUT: TECH1 TECH8;
PLOT: TYPE = PLOT3;