example1: Missouri Dickcissel Nest Survival Data - Interval Format
In BEANSP: Bayesian Estimate of Age-specific Nest Survival Probabilities

Description Usage Format Details References Examples

The Missouri dickcissel dataset collected by Suedkamp Wells(2005) is analyzed via BEANSP for illustration. For more detailed analysis,see Cao et.al(2009).

1	data(example1)

A data frame with 217 observations on the following 8 variables.

id: Nest id
fate: Nest fate; if 1, the nest fate is success;if 0, the nest fate is failure.
ul: The youngest possible age that the nest could have been when first encounterd.
ur: The oldest possible age that the nest could have been when first encounterd.
zl: The smallest possible number of time units from the first encounter date to the outcome date.
zr: The largest possible number of time units from the first encounter date to the outcome date.
cov1: The first nest-specific covariate.
cov2: The second nest-specific covariate.

The interval format is prefered if one has some additional information about encounter age and exposure interval other than visiting dates. The additional information may yield more precise intervals.

Cao, J., He, C., Suedkamp Wells, K.M., Millspaugh, J.J., and Ryan, M.R. (2009). Modeling age and nest-specific survival using a hierarchical Bayesian approach. Biometrics, 65, 1052-1062.