115 lines
3.5 KiB
C++
115 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "MovingAverageRegressionCurveCalculator.hxx"
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#include "RegressionCalculationHelper.hxx"
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#include "ResId.hxx"
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#include "Strings.hrc"
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#include "macros.hxx"
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#include <rtl/math.hxx>
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#include <rtl/ustrbuf.hxx>
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using namespace ::com::sun::star;
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namespace chart
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{
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MovingAverageRegressionCurveCalculator::MovingAverageRegressionCurveCalculator()
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{}
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MovingAverageRegressionCurveCalculator::~MovingAverageRegressionCurveCalculator()
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{}
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// ____ XRegressionCurveCalculator ____
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void SAL_CALL MovingAverageRegressionCurveCalculator::recalculateRegression(
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const uno::Sequence< double >& aXValues,
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const uno::Sequence< double >& aYValues )
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throw (uno::RuntimeException, std::exception)
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{
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::rtl::math::setNan( & m_fCorrelationCoeffitient );
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RegressionCalculationHelper::tDoubleVectorPair aValues(
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RegressionCalculationHelper::cleanup(
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aXValues, aYValues,
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RegressionCalculationHelper::isValid()));
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const size_t aSize = aValues.first.size();
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aYList.clear();
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aXList.clear();
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for( size_t i = mPeriod - 1; i < aSize; ++i )
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{
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double yAvg;
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yAvg = 0.0;
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for (sal_Int32 j = 0; j < mPeriod; j++)
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{
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yAvg += aValues.second[i - j];
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}
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yAvg /= mPeriod;
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double x = aValues.first[i];
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aYList.push_back(yAvg);
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aXList.push_back(x);
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}
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}
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double SAL_CALL MovingAverageRegressionCurveCalculator::getCurveValue( double /*x*/ )
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throw (lang::IllegalArgumentException,
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uno::RuntimeException, std::exception)
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{
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double fResult;
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rtl::math::setNan(&fResult);
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return fResult;
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}
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uno::Sequence< geometry::RealPoint2D > SAL_CALL MovingAverageRegressionCurveCalculator::getCurveValues(
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double /*min*/, double /*max*/, sal_Int32 /*nPointCount*/,
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const uno::Reference< chart2::XScaling >& /*xScalingX*/,
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const uno::Reference< chart2::XScaling >& /*xScalingY*/,
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sal_Bool /*bMaySkipPointsInCalculation*/ )
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throw (lang::IllegalArgumentException,
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uno::RuntimeException, std::exception)
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{
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uno::Sequence< geometry::RealPoint2D > aResult( aYList.size() );
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for( size_t i = 0; i < aYList.size(); ++i )
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{
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aResult[i].X = aXList[i];
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aResult[i].Y = aYList[i];
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}
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return aResult;
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}
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OUString MovingAverageRegressionCurveCalculator::ImplGetRepresentation(
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const uno::Reference< util::XNumberFormatter >& /*xNumFormatter*/,
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::sal_Int32 /*nNumberFormatKey*/ ) const
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{
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OUStringBuffer aBuf( "f(x) = N/A");
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aBuf = SCH_RESSTR( STR_OBJECT_MOVING_AVERAGE_WITH_PARAMETERS );
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return aBuf.makeStringAndClear();
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}
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} // namespace chart
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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