Stan Math Library  2.6.3
probability, sampling & optimization
 All Classes Namespaces Files Functions Variables Typedefs Enumerator Friends Macros
binary_log_loss.hpp
Go to the documentation of this file.
1 #ifndef STAN_MATH_FWD_SCAL_FUN_BINARY_LOG_LOSS_HPP
2 #define STAN_MATH_FWD_SCAL_FUN_BINARY_LOG_LOSS_HPP
3 
4 #include <stan/math/fwd/core.hpp>
5 
7 
8 namespace stan {
9 
10  namespace math {
11 
12  template <typename T>
13  inline
14  fvar<T>
15  binary_log_loss(const int y, const fvar<T>& y_hat) {
17 
18  if (y)
19  return fvar<T>(binary_log_loss(y, y_hat.val_),
20  -y_hat.d_ / y_hat.val_);
21  else
22  return fvar<T>(binary_log_loss(y, y_hat.val_),
23  y_hat.d_ / (1.0 - y_hat.val_));
24  }
25  }
26 }
27 #endif
fvar< T > binary_log_loss(const int y, const fvar< T > &y_hat)

     [ Stan Home Page ] © 2011–2015, Stan Development Team.