Stan Math Library  2.11.0
reverse mode automatic differentiation
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 
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
fvar< T > atanh(const fvar< T > &x)
Definition: atanh.hpp:13
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

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