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corr_free.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_FUN_CORR_FREE_HPP
2 #define STAN_MATH_PRIM_SCAL_FUN_CORR_FREE_HPP
3
4 #include <stan/math/prim/scal/err/check_bounded.hpp>
5 #include <cmath>
6
7 namespace stan {
8
9 namespace math {
10
27 template <typename T>
28 inline
29 T corr_free(const T y) {
30 stan::math::check_bounded<T, double, double>
31 ("stan::math::lub_free",
32 "Correlation variable", y, -1, 1);
33 return atanh(y);
34 }
35
36 }
37
38 }
39
40 #endif
stan::math::atanh
fvar< T > atanh(const fvar< T > &x)
Definition: atanh.hpp:13
stan::math::corr_free
T corr_free(const T y)
Return the unconstrained scalar that when transformed to a valid correlation produces the specified v...
Definition: corr_free.hpp:29
stan
Definition: log_sum_exp.hpp:8
check_bounded.hpp

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