本文整理汇总了C++中AVAR类的典型用法代码示例。如果您正苦于以下问题：C++ AVAR类的具体用法？C++ AVAR怎么用？C++ AVAR使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了AVAR类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: TEST
TEST(AgradRev, falling_factorial_var_var) {
AVAR a(4.0);
AVAR b(4.0);
AVAR f = stan::math::falling_factorial(a,b);
EXPECT_FLOAT_EQ(1.0, f.val());
AVEC x = createAVEC(a,b);
VEC g;
f.grad(x,g);
EXPECT_FLOAT_EQ(1.0 * boost::math::digamma(5), g[0]);
EXPECT_FLOAT_EQ(boost::math::digamma(5) * -1.0, g[1]);
}示例2: assert_val_grad
void assert_val_grad(Eigen::Matrix<stan::agrad::var,R,C>& v) {
v << -1.0, 0.0, 3.0;
AVEC x = createAVEC(v(0),v(1),v(2));
AVAR f = dot_self(v);
VEC g;
f.grad(x,g);
EXPECT_FLOAT_EQ(-2.0,g[0]);
EXPECT_FLOAT_EQ(0.0,g[1]);
EXPECT_FLOAT_EQ(6.0,g[2]);
} 示例3: TEST
TEST(AgradRevMatrix,log_determinant_spd) {
using stan::math::matrix_v;
using stan::math::log_determinant_spd;
matrix_v v(2,2);
v << 1, 0, 0, 3;
AVAR det;
det = log_determinant_spd(v);
EXPECT_FLOAT_EQ(std::log(3.0), det.val());
}示例4: TEST
TEST(AgradRev,abs_var_3) {
AVAR a = 0.0;
AVAR f = abs(a);
EXPECT_FLOAT_EQ(0.0, f.val());
AVEC x = createAVEC(a);
VEC g;
f.grad(x,g);
EXPECT_EQ(1U,g.size());
EXPECT_FLOAT_EQ(0.0, g[0]);
}示例5: TEST
TEST(AgradRev,fmax_vd_3) {
AVAR a = 2.0;
double b = 2.0;
AVAR f = fmax(a,b);
EXPECT_FLOAT_EQ(2.0,f.val());
AVEC x = createAVEC(a);
VEC grad_f;
f.grad(x,grad_f);
EXPECT_FLOAT_EQ(1.0,grad_f[0]);
} 示例6: TEST
TEST(AgradRev,a_minus_b) {
AVAR a = 5.0;
AVAR b = 2.0;
AVAR f = a - b;
EXPECT_FLOAT_EQ(3.0,f.val());
AVEC x = createAVEC(a,b);
VEC dx;
f.grad(x,dx);
EXPECT_FLOAT_EQ(1.0,dx[0]);
EXPECT_FLOAT_EQ(-1.0,dx[1]);
}示例7: TEST
TEST(AgradRev,pow_double_var) {
double a = 3.0;
AVAR b(4.0);
AVAR f = pow(a,b);
EXPECT_FLOAT_EQ(81.0,f.val());
AVEC x = createAVEC(b);
VEC g;
f.grad(x,g);
EXPECT_FLOAT_EQ(log(3.0) * pow(3.0,4.0), g[0]);
}示例8: TEST
TEST(AgradRevMatrix, trace_inv_quad_form_ldlt_mat) {
using stan::agrad::matrix_v;
using stan::math::matrix_d;
matrix_v av(4,4);
matrix_d ad(4,4);
matrix_d bd(4,2);
matrix_v bv(4,2);
AVAR res;
AVEC vars;
VEC grad;
bd << 100, 10,
0, 1,
-3, -3,
5, 2;
bv << 100, 10,
0, 1,
-3, -3,
5, 2;
ad << 9.0, 3.0, 3.0, 3.0,
3.0, 10.0, 2.0, 2.0,
3.0, 2.0, 7.0, 1.0,
3.0, 2.0, 1.0, 112.0;
av << 9.0, 3.0, 3.0, 3.0,
3.0, 10.0, 2.0, 2.0,
3.0, 2.0, 7.0, 1.0,
3.0, 2.0, 1.0, 112.0;
stan::math::LDLT_factor<double,-1,-1> ldlt_ad;
stan::math::LDLT_factor<stan::agrad::var,-1,-1> ldlt_av;
ldlt_av.compute(av);
ASSERT_TRUE(ldlt_av.success());
ldlt_ad.compute(ad);
ASSERT_TRUE(ldlt_ad.success());
// double-double
res = trace_inv_quad_form_ldlt(ldlt_ad,bd);
EXPECT_FLOAT_EQ(1439.1061766207, res.val());
// var-double
res = trace_inv_quad_form_ldlt(ldlt_av,bd);
EXPECT_FLOAT_EQ(1439.1061766207, res.val());
// double-var
res = trace_inv_quad_form_ldlt(ldlt_ad,bv);
EXPECT_FLOAT_EQ(1439.1061766207, res.val());
// var-var
res = trace_inv_quad_form_ldlt(ldlt_av,bv);
EXPECT_FLOAT_EQ(1439.1061766207, res.val());
}示例9: TEST
TEST(AgradRev,a_times_b) {
AVAR a = 2.0;
AVAR b = -3.0;
AVAR f = a * b;
EXPECT_FLOAT_EQ(-6.0,f.val());
AVEC x = createAVEC(a,b);
VEC grad_f;
f.grad(x,grad_f);
EXPECT_FLOAT_EQ(-3.0,grad_f[0]);
EXPECT_FLOAT_EQ(2.0,grad_f[1]);
}示例10: TEST
TEST(AgradRev,hypot_dv) {
double a = 3.0;
AVAR b = 4.0;
AVAR f = hypot(a,b);
EXPECT_FLOAT_EQ(5.0,f.val());
AVEC x = createAVEC(b);
VEC grad_f;
f.grad(x,grad_f);
// arbitrary, but doc this way
EXPECT_FLOAT_EQ(4.0/5.0,grad_f[0]);
} 示例11: TEST
TEST(AgradRev,log_falling_factorial_var_double) {
double a(1);
AVAR b(4.0);
AVAR f = stan::agrad::log_falling_factorial(b,a);
EXPECT_FLOAT_EQ(std::log(24.0),f.val());
AVEC x = createAVEC(a,b);
VEC g;
f.grad(x,g);
EXPECT_FLOAT_EQ(0, g[0]);
EXPECT_FLOAT_EQ(boost::math::digamma(5),g[1]);
}示例12: TEST
TEST(AgradRev, rising_factorial_double_var) {
using boost::math::digamma;
double a(5);
AVAR b(4.0);
AVAR f = stan::agrad::rising_factorial(a,b);
EXPECT_FLOAT_EQ(5*6*7*8, f.val());
AVEC x = createAVEC(a,b);
VEC g;
f.grad(x,g);
EXPECT_FLOAT_EQ(0, g[0]);
EXPECT_FLOAT_EQ(digamma(9) * 5*6*7*8, g[1]);
}示例13: TEST
TEST(AgradRev,abs_NaN) {
AVAR a = std::numeric_limits<double>::quiet_NaN();
AVAR f = abs(a);
AVEC x = createAVEC(a);
VEC g;
f.grad(x,g);
EXPECT_TRUE(boost::math::isnan(f.val()));
ASSERT_EQ(1,g.size());
EXPECT_TRUE(boost::math::isnan(g[0]));
}示例14: TEST
TEST(AgradRev,fma_ddv_defaultpolicy) {
double a = 3.0;
double b = 5.0;
AVAR c = 7.0;
AVAR f = fma(a,b,c);
EXPECT_FLOAT_EQ(3.0 * 5.0 + 7.0, f.val());
AVEC x = createAVEC(c);
VEC grad_f;
f.grad(x,grad_f);
EXPECT_FLOAT_EQ(1.0,grad_f[0]);
} 示例15: TEST
TEST(AgradRev,fmod_var_var) {
AVAR a = 2.7;
AVAR b = 1.3;
AVAR f = fmod(a,b);
EXPECT_FLOAT_EQ(std::fmod(2.7,1.3),f.val());
AVEC x = createAVEC(a,b);
VEC g;
f.grad(x,g);
EXPECT_FLOAT_EQ(1.0,g[0]);
EXPECT_FLOAT_EQ(-2.0,g[1]); // (int)(2.7/1.3) = 2
}