public static double calculateVarAvg(EpisodeData episode, int varIndex)
{
if (varIndex < 0 || episode.steps.Count == 0)
{
return(0.0);
}
double avg = 0.0;
foreach (StepData step in episode.steps)
{
avg += step.data[varIndex];
}
return(avg / episode.steps.Count);
}
public static double calculateStdDev(EpisodeData episode, int varIndex)
{
if (varIndex < 0 || episode.steps.Count == 0)
{
return(0.0);
}
double avg = calculateVarAvg(episode, varIndex);
double sum = 0.0, diff;
foreach (StepData step in episode.steps)
{
diff = step.data[varIndex] - avg;
sum = diff * diff;
}
return(Math.Sqrt(sum / episode.steps.Count));
}
public static double calculateMax(EpisodeData episode, int varIndex)
{
if (varIndex < 0 || episode.steps.Count == 0)
{
return(0.0);
}
double max = episode.steps[0].data[varIndex];
foreach (StepData step in episode.steps)
{
if (step.data[varIndex] > max)
{
max = step.data[varIndex];
}
}
return(max);
}
public static ExperimentData load(string logFilename)
{
ExperimentData experimentData = new ExperimentData();
try
{
FileStream logFile = File.OpenRead(logFilename);
using (BinaryReader binaryReader = new BinaryReader(logFile))
{
experimentData.readExperimentLogHeader(binaryReader);
for (int i = 0; i < experimentData.numEpisodes; i++)
{
EpisodeData episodeData = new EpisodeData();
experimentData.episodes.Add(episodeData);
episodeData.readEpisodeHeader(binaryReader);
StepData stepData = new StepData();
bool bLastStep = stepData.readStep(binaryReader, episodeData.numVariablesLogged);
while (!bLastStep)
{
//we only add the step if it's not the last one
//last steps don't contain any info but the end marker
episodeData.steps.Add(stepData);
stepData = new StepData();
bLastStep = stepData.readStep(binaryReader, episodeData.numVariablesLogged);
}
}
}
logFile.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
return(experimentData);
}
