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32 lines
845 B
C++
32 lines
845 B
C++
#include "series_context.h"
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#include <poincare/decimal.h>
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#include <assert.h>
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using namespace Poincare;
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using namespace Shared;
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namespace Statistics {
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const Expression * SeriesContext::expressionForSymbol(const Symbol * symbol) {
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assert(m_seriesPairIndex >= 0);
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if (!symbol->isSeriesSymbol()) {
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return nullptr;
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}
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const char * seriesName = Symbol::textForSpecialSymbols(symbol->name());
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assert(strlen(seriesName) == 2);
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int series = seriesName[1] - '0';
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assert(series >= 0 && series < Store::k_numberOfSeries);
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assert((seriesName[0] == 'V') || (seriesName[0] == 'N'));
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int storeI = seriesName[0] == 'V' ? 0 : 1;
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assert(m_seriesPairIndex < store->numberOfPairsOfSeries(series));
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Expression * result = new Decimal(m_store->get(series, storeI, m_seriesPairIndex));
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assert(result != nullptr);
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return result;
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}
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}
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