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#property indicator_chart_window

int downArrowCount = 0;
int upArrowCount = 0;

int OnCalculate(const int rates_total, const int prev_calculated, const datetime &time[], const double &open[], const double &high[], const double &low[], const double &close[], const long &tick_volume[], const long &volume[], const int &spread[])
{
    for (int i = prev_calculated; i < rates_total; i++)
    {
        // Check for down arrow and downward close
        if (low[i] < low[i - 1] && close[i] < close[i - 1])
        {
            downArrowCount++;
        }
        // Check for up arrow and upward close
        else if (high[i] > high[i - 1] && close[i] > close[i - 1])
        {
            upArrowCount++;
        }
    }

    // Update the dashboard or print the values
    // You can use the Chart functions or print to the Experts tab in the Terminal window
    // Example: ChartIndicatorAdd(0, downArrowCount);
    // Example: ChartIndicatorAdd(1, upArrowCount);
    // Example: Print("Down Arrow Count: ", downArrowCount, " Up Arrow Count: ", upArrowCount);

    return rates_total;
}