Generic function for closing the chosen OPI implementation that is set with
chooseOpi().
Usage
opiClose(...)
Arguments
...
Implementation specific parameters. See details.
Value
Returns NULL if initialization succeeded,
otherwise an implementation dependant error.
References
Please cite:
A. Turpin, P.H. Artes and A.M. McKendrick
"The Open Perimetry Interface: An enabling tool for clinical visual psychophysics",
Journal of Vision 12(11) 2012.
chooseOpi("SimGaussian")
if (!is.null(opiInitialize(sd=2)))
stop("opiInitialize failed")
if (!is.null(opiClose()))
stop("opiClose failed, which is very surprising!")