40 #ifndef SHARK_OBJECTIVEFUNCTIONS_BENCHMARK_LZ7_H 41 #define SHARK_OBJECTIVEFUNCTIONS_BENCHMARK_LZ7_H 91 std::size_t counter1 = 0, counter2 = 0;
92 for( std::size_t i = 1; i < x.size(); i++ ) {
93 double y = x(i) - ::pow( x(0), 0.5*(1.0 + 3*(i-1)/(x.size()-1) ) );
96 value[1] += 4*
sqr( y ) - ::cos( 8*y*M_PI) + 1.;
99 value[0] += 4*
sqr( y ) - ::cos( 8*y*M_PI) + 1.;
103 value[0] *= 2./counter1;
106 value[1] *= 2./counter2;
107 value[1] += 1 - std::sqrt( x( 0 ) );