adaptiveImportanceSampler.cc

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// -*- lsst-c++ -*-
/*
 * LSST Data Management System
 * Copyright 2008-2013 LSST Corporation.
 *
 * This product includes software developed by the
 * LSST Project (http://www.lsst.org/).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the LSST License Statement and
 * the GNU General Public License along with this program.  If not,
 * see <http://www.lsstcorp.org/LegalNotices/>.
 */

#include "pybind11/pybind11.h"

#include "lsst/pex/config/python.h"
#include "lsst/meas/modelfit/AdaptiveImportanceSampler.h"
#include "lsst/afw/table/BaseRecord.h"
#include "lsst/afw/table/BaseTable.h"
#include "lsst/afw/table/Catalog.h"

namespace py = pybind11;
using namespace pybind11::literals;

namespace lsst {
namespace meas {
namespace modelfit {
namespace {

using PyImportanceSamplerControl =
        py::class_<ImportanceSamplerControl, std::shared_ptr<ImportanceSamplerControl>>;
using PyAdaptiveImportanceSampler =
        py::class_<AdaptiveImportanceSampler, std::shared_ptr<AdaptiveImportanceSampler>, Sampler>;

PYBIND11_MODULE(adaptiveImportanceSampler, mod) {
    py::module::import("lsst.afw.table");
    py::module::import("lsst.afw.math");
    py::module::import("lsst.meas.modelfit.sampler");
    py::module::import("lsst.meas.modelfit.mixture");

    PyImportanceSamplerControl clsImportanceSamplerControl(mod, "ImportanceSamplerControl");
    clsImportanceSamplerControl.def(py::init<>());
    LSST_DECLARE_CONTROL_FIELD(clsImportanceSamplerControl, ImportanceSamplerControl, nSamples);
    LSST_DECLARE_CONTROL_FIELD(clsImportanceSamplerControl, ImportanceSamplerControl, nUpdateSteps);
    LSST_DECLARE_CONTROL_FIELD(clsImportanceSamplerControl, ImportanceSamplerControl, tau1);
    LSST_DECLARE_CONTROL_FIELD(clsImportanceSamplerControl, ImportanceSamplerControl, tau2);
    LSST_DECLARE_CONTROL_FIELD(clsImportanceSamplerControl, ImportanceSamplerControl, targetPerplexity);
    LSST_DECLARE_CONTROL_FIELD(clsImportanceSamplerControl, ImportanceSamplerControl, maxRepeat);

    PyAdaptiveImportanceSampler clsAdaptiveImportanceSampler(mod, "AdaptiveImportanceSampler");
    clsAdaptiveImportanceSampler.def(py::init<afw::table::Schema &, std::shared_ptr<afw::math::Random>,
                                              std::map<int, ImportanceSamplerControl> const &, bool>(),
                                     "sampleSchema"_a, "rng"_a, "ctrls"_a, "doSaveIteration"_a = false);
    // virtual run method already wrapped by Sampler base class
    clsAdaptiveImportanceSampler.def("computeNormalizedPerplexity",
                                     &AdaptiveImportanceSampler::computeNormalizedPerplexity);
    clsAdaptiveImportanceSampler.def("computeEffectiveSampleSizeFraction",
                                     &AdaptiveImportanceSampler::computeEffectiveSampleSizeFraction);
}

}
}
}
}  // namespace lsst::meas::modelfit::anonymous