| 784 | } |
| 785 | |
| 786 | double TimeSeries_Impl::integrate() const { |
| 787 | double result = 0; |
| 788 | if (m_intervalLength) { |
| 789 | int secs = m_intervalLength.get().totalSeconds(); |
| 790 | // Use a Riemann sum to integrate under the curve |
| 791 | for (unsigned i = 0; i < m_values.size(); i++) { |
| 792 | result += secs * m_values[i]; |
| 793 | } |
| 794 | } else { |
| 795 | double lastTime = 0; |
| 796 | // Use a Riemann sum to integrate under the curve |
| 797 | for (unsigned i = 0; i < m_values.size(); i++) { |
| 798 | result += (m_secondsFromStart[i] - lastTime) * m_values[i]; |
| 799 | lastTime = m_secondsFromStart[i]; |
| 800 | } |
| 801 | } |
| 802 | return result; |
| 803 | } |
| 804 | |
| 805 | double TimeSeries_Impl::averageValue() const { |
| 806 | if (!m_secondsFromStart.empty()) { |