public ComputedResultSetFitLine ComputeLinearData(List <DeviceValue> dataPoints)
{
var resultSet = new ComputedResultSetFitLine();
double[] xdata = CreateXDataFromDateTimeToTotalSeconds(dataPoints);
double[] ydata = CreateYDataFromDoubleValues(dataPoints);
Tuple <double, double> p = Fit.Line(xdata, ydata);
double intercept = p.Item1; // == 10; intercept -- No clue what this is
double slope = p.Item2; // == 0.5; slope
resultSet.Slope = slope;
resultSet.Intercept = intercept;
if (slope > 0)
{
resultSet.IsAscending = true;
}
if (slope < 0)
{
resultSet.IsDescending = true;
}
return(resultSet);
}
private bool CheckResultData(AscDescEnum ascDesc, ComputedResultSetFitLine resultSetComputedLinearData)
{
if (ascDesc == AscDescEnum.Descending && resultSetComputedLinearData.IsDescending)
{
return(true);
}
if (ascDesc == AscDescEnum.Ascending && resultSetComputedLinearData.IsAscending)
{
return(true);
}
return(false);
}
private ResultSetComputedFutureValue ComputeFutureValues(List <DeviceValue> dataPoints, AscDescEnum ascDesc, ComputedResultSetFitLine resultSetComputedLinearData, double threshold, TimeSpan timeToReachThreshold)
{
var resultSet = new ResultSetComputedFutureValue();
var lastValue = dataPoints.LastOrDefault();
if (lastValue != null)
{
var totalNumberOfSecondsInTimeSpan = timeToReachThreshold.TotalSeconds;
var futureValueAtEndOfTimeSpan = totalNumberOfSecondsInTimeSpan * resultSetComputedLinearData.Slope;
_logging.LogDebug($"Result of future computation. With slope {resultSetComputedLinearData.Slope} for {totalNumberOfSecondsInTimeSpan} seconds computed value is {futureValueAtEndOfTimeSpan} (threshold:{threshold})");
resultSet.FutureValueAtEndOfTimeSpan = futureValueAtEndOfTimeSpan;
if (ascDesc == AscDescEnum.Ascending && futureValueAtEndOfTimeSpan >= threshold)
{
resultSet.TriggerTrue = true;
}
if (ascDesc == AscDescEnum.Descending && futureValueAtEndOfTimeSpan <= threshold)
{
resultSet.TriggerTrue = true;
}
}
return(resultSet);
}
