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count_r
2011 May 04
1
hurdle, simulated power
...n in package pscl) for sample size estimation.
The simulation code and power code are below -- note that at the moment
the "power" code is just returning the coefficients, as something isn't
working quite right.
The average estimates from code below are:
count_(Intercept) count_trt zero_(Intercept)
2.498327128 -0.000321315 0.910293501
zero_trt
-0.200134813
Three of the four look right (ie, converging to population values), but
the count_trt is stuck at zero, regardless of sample size (when it
should be ~ -0.20).
Does anyone see what'...