p2colasr: P-value for a discrete distribution on small sample data
Description
Computes the p-value for a two-sided hypothesis test following
Dixon's (2002:145) description of the method of Agresti & Min (2001).
Usage
p2colasr(Z, nsim = length(Z))
Arguments
Z
vector with the observed Z-score in the first position and
all the simulated values behind.
nsim
Number of simulated values.
Value
P-value of the two-sided hypothesis test
References
Agresti, A. & Min, Y. 2001. On small-sample confidence intervals
for parameters in discrete distributions. Biometrics, 57: 963-971.
Dixon, P.M. 2002. Nearest-neighbor contingency table analysis
of spatial segregation for several species. Ecoscience, 9(2): 142-151.