testfn {COZIGAM}R Documentation

Some Test Functions

Description

testfn defines a 2-D test function.

f0 and f1 define two 1-D test functions. These test functions may be used in simulation study of COZIGAM fits.

Details

f_0(x)=0.2x^{11}(10(1-x))^{6}+10(10x)^{3}(1-x)^{10}

f_1(x)=sin(π x)

testfn(x,z)=0.3times 0.4π{1.2e^{-(x-0.2)^2/0.3^2 -(z-0.3)^2}+0.8e^{-(x-0.7)^2/0.3^2-(z-0.8)^2/0.4^2}}

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Author(s)

Hai Liu and Kung-Sik Chan

See Also

cozigam


[Package COZIGAM version 1.0-1 Index]