/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you 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 . */ #include #include #include #include #include #include #include using namespace ::com::sun::star; using namespace ::com::sun::star::chart2; namespace chart { MovingAverageRegressionCurveCalculator::MovingAverageRegressionCurveCalculator() {} MovingAverageRegressionCurveCalculator::~MovingAverageRegressionCurveCalculator() {} // ____ XRegressionCurveCalculator ____ void SAL_CALL MovingAverageRegressionCurveCalculator::recalculateRegression( const uno::Sequence< double >& aXValues, const uno::Sequence< double >& aYValues ) { m_fCorrelationCoefficient = std::numeric_limits::quiet_NaN(); RegressionCalculationHelper::tDoubleVectorPair aValues( RegressionCalculationHelper::cleanup( aXValues, aYValues, RegressionCalculationHelper::isValid())); aYList.clear(); aXList.clear(); // For formulas, see // https://docs.oasis-open.org/office/OpenDocument/v1.3/cs02/part3-schema/OpenDocument-v1.3-cs02-part3-schema.html#property-chart_regression-moving-type switch (mnMovingType) { case MovingAverageType::Central: { calculateValuesCentral(std::move(aValues)); break; } case MovingAverageType::AveragedAbscissa: { calculateValues(std::move(aValues), true); break; } case MovingAverageType::Prior: default: { calculateValues(std::move(aValues), false); break; } } } void MovingAverageRegressionCurveCalculator::calculateValuesCentral( const RegressionCalculationHelper::tDoubleVectorPair& aValues) { const size_t aSize = aValues.first.size(); if (aSize == 0) return; for (size_t i = mPeriod - 1; i < aSize; ++i) { double yAvg = 0.0; for (sal_Int32 j = 0; j < mPeriod; j++) { yAvg += aValues.second[i - j]; } yAvg /= mPeriod; aYList.push_back(yAvg); } sal_Int32 nPeriodLocal = (mPeriod % 2 == 0) ? (mPeriod / 2) : ((mPeriod - 1) / 2); for (size_t i = nPeriodLocal; i < aSize - 1; ++i) { double x = aValues.first[i]; aXList.push_back(x); } } void MovingAverageRegressionCurveCalculator::calculateValues( const RegressionCalculationHelper::tDoubleVectorPair& aValues, bool bUseXAvg) { const size_t aSize = aValues.first.size(); for (size_t i = mPeriod - 1; i < aSize; ++i) { double xAvg = 0.0; double yAvg = 0.0; for (sal_Int32 j = 0; j < mPeriod; j++) { xAvg += aValues.first[i - j]; yAvg += aValues.second[i - j]; } yAvg /= mPeriod; xAvg /= mPeriod; aYList.push_back(yAvg); if (bUseXAvg) { aXList.push_back(xAvg); } else { double x = aValues.first[i]; aXList.push_back(x); } } } double SAL_CALL MovingAverageRegressionCurveCalculator::getCurveValue( double /*x*/ ) { return std::numeric_limits::quiet_NaN(); } uno::Sequence< geometry::RealPoint2D > SAL_CALL MovingAverageRegressionCurveCalculator::getCurveValues( double /*min*/, double /*max*/, sal_Int32 /*nPointCount*/, const uno::Reference< chart2::XScaling >& /*xScalingX*/, const uno::Reference< chart2::XScaling >& /*xScalingY*/, sal_Bool /*bMaySkipPointsInCalculation*/ ) { size_t nSize = std::min(aXList.size(), aYList.size()); uno::Sequence< geometry::RealPoint2D > aResult( nSize ); std::transform(aXList.begin(), aXList.begin() + nSize, aYList.begin(), aResult.getArray(), [](const auto& x, const auto& y) { return geometry::RealPoint2D(x, y); }); return aResult; } OUString MovingAverageRegressionCurveCalculator::ImplGetRepresentation( const uno::Reference< util::XNumberFormatter >& /*xNumFormatter*/, sal_Int32 /*nNumberFormatKey*/, sal_Int32* /*pFormulaLength = nullptr */ ) const { OUString aRet = SchResId( STR_OBJECT_MOVING_AVERAGE_WITH_PARAMETERS ); // change text for Moving Average OUString aWildcard( u"%PERIOD"_ustr ); sal_Int32 nIndex = aRet.indexOf( aWildcard ); if( nIndex != -1 ) { // replace period aRet = aRet.replaceAt( nIndex, aWildcard.getLength(), OUString::number(mPeriod) ); } return aRet; } } // namespace chart /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ /lov-6.4 LibreOffice 核心代码仓库文档基金会
summaryrefslogtreecommitdiff
path: root/swext
AgeCommit message (Expand)Author
2021-04-11Get rid of apache-commons-loggingStephan Bergmann
2021-04-11Apache Commons Codec/HttpClient/Lang are no longer bundledStephan Bergmann
2021-04-07Updated README.md files to represent current code / use Markdown formatHossein
2021-03-24Using .md extension/Markdown syntax for modules READMEHossein
2021-03-22cid#1473816 Dereference null return valueCaolán McNamara
2021-03-22cid#1473739 Resource leak on an exceptional pathCaolán McNamara