public static QuestionMessage CreateCurrentReadingQuestion(double[] overall_stats, SensorReadingsData data, double[] significances, SensorDefinition[] sensorDefinitions)
{
double[] value = new double[4] { data.Reading1, data.Reading2, data.Reading3, data.Reading4 };
if (value.Length != significances.Length)
{
throw new ArgumentException("Must provide an equal amount of reading values and significance values");
}
if (value.Length != sensorDefinitions.Length)
{
throw new ArgumentException("Must provide an equal amount of reading values and sensor descriptions");
}
if (overall_stats.Length < 11)
{
throw new ArgumentException("Overall stats needs to be for at least 12 elements", "overall_stats");
}
double[] overall_means = new double[] { overall_stats[2], overall_stats[5], overall_stats[8], overall_stats[11] };
// Find out how many of the readings are significant
List<int> significant_reading_indexes = new List<int>();
for (int i = 0; i < value.Length; i++)
{
if (significances[i] > significance_threshold)
{
significant_reading_indexes.Add(i);
}
}
// If some readings are significant, randomly choose one to ask about
if (significant_reading_indexes.Count > 0)
{
Random rand = new Random();
int chosen_index = Convert.ToInt32(Math.Floor(rand.Next(significant_reading_indexes.Count)));
int chosen_reading_index = significant_reading_indexes[chosen_index];
double chosen_value = value[chosen_reading_index];
// A reading and sensor have been selected, socreate the question
QuestionMessage qMessage = new QuestionMessage();
string message_string;
// Now one is chosen, work out whether it's high or low
// Message substitution index
// 0: Reading time
// 1: Sensor Name
// 2: Reading value
// 3: Unit
if (overall_means[chosen_reading_index] < chosen_value)
{
message_string = "We think the {1} is high at the moment... what do you think? What might have caused this?";
}
else
{
message_string = "Low {1} readings have been detected, has anything happend that might explain this?";
}
qMessage.Text = String.Format(message_string,
data.Time.ToLocalTime().ToShortTimeString(),
sensorDefinitions[chosen_reading_index].Name.ToLower(),
value[chosen_reading_index],
sensorDefinitions[chosen_reading_index].Unit);
return qMessage;
}
else
{
return null;
}
}
public static void SerializeSensorReadingsData(MemoryStream ms, SensorReadingsData data)
{
SensorReadingsDataSerializer.Serialize(ms, data);
}
