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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 namespace math {
9
26 template <typename T>
27 inline
28 T corr_free(const T y) {
29 check_bounded("lub_free",
30 "Correlation variable", y, -1.0, 1.0);
31 return atanh(y);
32 }
33
34 }
35 }
36 #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:28
stan
Definition: log_sum_exp.hpp:8
stan::math::check_bounded
bool check_bounded(const char *function, const char *name, const T_y &y, const T_low &low, const T_high &high)
Return true if the value is between the low and high values, inclusively.
Definition: check_bounded.hpp:95
check_bounded.hpp

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