Stan Math Library
2.10.0
reverse mode automatic differentiation
Main Page
Modules
Namespaces
Classes
Files
File List
File Members
stan
math
fwd
scal
fun
logit.hpp
Go to the documentation of this file.
1
#ifndef STAN_MATH_FWD_SCAL_FUN_LOGIT_HPP
2
#define STAN_MATH_FWD_SCAL_FUN_LOGIT_HPP
3
4
#include <
stan/math/fwd/core.hpp
>
5
6
#include <
stan/math/prim/scal/fun/logit.hpp
>
7
#include <
stan/math/prim/scal/fun/square.hpp
>
8
#include <
stan/math/prim/scal/fun/constants.hpp
>
9
10
namespace
stan
{
11
12
namespace
math {
13
14
template
<
typename
T>
15
inline
16
fvar<T>
17
logit
(
const
fvar<T>
& x) {
18
using
stan::math::logit
;
19
using
stan::math::square
;
20
using
stan::math::NOT_A_NUMBER
;
21
if
(x.
val_
> 1 || x.
val_
< 0)
22
return
fvar<T>
(
NOT_A_NUMBER
,
NOT_A_NUMBER
);
23
else
24
return
fvar<T>
(
logit
(x.
val_
), x.
d_
/ (x.
val_
-
square
(x.
val_
)));
25
}
26
}
27
}
28
#endif
core.hpp
stan::math::fvar::d_
T d_
Definition:
fvar.hpp:15
stan::math::NOT_A_NUMBER
const double NOT_A_NUMBER
(Quiet) not-a-number value.
Definition:
constants.hpp:56
stan
Definition:
log_sum_exp.hpp:8
square.hpp
stan::math::square
fvar< T > square(const fvar< T > &x)
Definition:
square.hpp:15
stan::math::fvar::val_
T val_
Definition:
fvar.hpp:14
stan::math::logit
fvar< T > logit(const fvar< T > &x)
Definition:
logit.hpp:17
constants.hpp
logit.hpp
stan::math::fvar
Definition:
fvar.hpp:13
[
Stan Home Page
]
© 2011–2016, Stan Development Team.