These functions are standard testcase for sensitivity
analysis benchmarks. There are: the g-function of Sobol, the function
of Ishigami and the function of Morris.
Usage
sobol.fun(x)
ishigami.fun(x)
morris.fun(x)
Arguments
x
the matrix or data.frame containing the input
values.
Value
All these functions return a numeric vector containig the values
of the function. These functions are vectorized.
References
Saltelli, A., Chan, K. and Scott, E. M., 2000, Sensitivity
analysis. Wiley, 33--45.