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// SPDX-License-Identifier: Apache-2.0
//
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
// Copyright 2008-2016 National ICT Australia (NICTA)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------
//! \addtogroup fn_mvnrnd
//! @{
template<typename T1, typename T2>
arma_warn_unused
inline
typename
enable_if2
<
is_real<typename T1::elem_type>::value,
const Glue<T1, T2, glue_mvnrnd_vec>
>::result
mvnrnd(const Base<typename T1::elem_type, T1>& M, const Base<typename T1::elem_type, T2>& C)
{
arma_extra_debug_sigprint();
return Glue<T1, T2, glue_mvnrnd_vec>(M.get_ref(), C.get_ref());
}
template<typename T1, typename T2>
arma_warn_unused
inline
typename
enable_if2
<
is_real<typename T1::elem_type>::value,
const Glue<T1, T2, glue_mvnrnd>
>::result
mvnrnd(const Base<typename T1::elem_type, T1>& M, const Base<typename T1::elem_type, T2>& C, const uword N)
{
arma_extra_debug_sigprint();
return Glue<T1, T2, glue_mvnrnd>(M.get_ref(), C.get_ref(), N);
}
template<typename T1, typename T2>
inline
typename
enable_if2
<
is_real<typename T1::elem_type>::value,
bool
>::result
mvnrnd(Mat<typename T1::elem_type>& out, const Base<typename T1::elem_type, T1>& M, const Base<typename T1::elem_type, T2>& C)
{
arma_extra_debug_sigprint();
const bool status = glue_mvnrnd::apply_direct(out, M.get_ref(), C.get_ref(), uword(1));
if(status == false)
{
out.soft_reset();
arma_debug_warn_level(3, "mvnrnd(): given covariance matrix is not symmetric positive semi-definite");
}
return status;
}
template<typename T1, typename T2>
inline
typename
enable_if2
<
is_real<typename T1::elem_type>::value,
bool
>::result
mvnrnd(Mat<typename T1::elem_type>& out, const Base<typename T1::elem_type, T1>& M, const Base<typename T1::elem_type, T2>& C, const uword N)
{
arma_extra_debug_sigprint();
const bool status = glue_mvnrnd::apply_direct(out, M.get_ref(), C.get_ref(), N);
if(status == false)
{
out.soft_reset();
arma_debug_warn_level(3, "mvnrnd(): given covariance matrix is not symmetric positive semi-definite");
}
return status;
}
//! @}
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