public CsvStats StripByEvents(string startString, string endString, bool invert, out int numFramesStripped)
{
CsvStats newCsvStats = new CsvStats();
List <int> startIndices = null;
List <int> endIndices = null;
GetEventFrameIndexDelimiters(startString, endString, out startIndices, out endIndices);
numFramesStripped = 0;
if (startIndices.Count == 0)
{
return(this);
}
numFramesStripped = -1;
int frameCount = 0;
// Strip out samples and recompute averages
foreach (StatSamples stat in Stats.Values)
{
StatSamples newStat = new StatSamples(stat, false);
newStat.samples = new List <float>(SampleCount);
int stripEventIndex = 0;
for (int i = 0; i < stat.samples.Count; i++)
{
int startIndex = (stripEventIndex < startIndices.Count) ? startIndices[stripEventIndex] : stat.samples.Count;
int endIndex = (stripEventIndex < endIndices.Count) ? endIndices[stripEventIndex] : stat.samples.Count;
if (i < startIndex)
{
newStat.samples.Add(stat.samples[i]);
}
else
{
if (i == endIndex)
{
stripEventIndex++;
}
}
}
if (numFramesStripped == -1)
{
numFramesStripped = stat.samples.Count - newStat.samples.Count;
frameCount = stat.samples.Count;
}
newStat.ComputeAverageAndTotal();
newCsvStats.AddStat(newStat);
}
// Strip out the events
int FrameOffset = 0;
{
int stripEventIndex = 0;
for (int i = 0; i < Events.Count; i++)
{
CsvEvent csvEvent = Events[i];
int startIndex = (stripEventIndex < startIndices.Count) ? startIndices[stripEventIndex] : frameCount;
int endIndex = (stripEventIndex < endIndices.Count) ? endIndices[stripEventIndex] : frameCount;
CsvEvent newEvent = new CsvEvent(csvEvent.Name, csvEvent.Frame + FrameOffset);
if (csvEvent.Frame < startIndex)
{
newCsvStats.Events.Add(newEvent);
}
else
{
if (csvEvent.Frame == startIndex)
{
// Check if this is the last event this frame
if (i == Events.Count - 1 || Events[i + 1].Frame != csvEvent.Frame)
{
// Subsequent events will get offset by this amount
FrameOffset -= endIndex - startIndex;
}
}
if (csvEvent.Frame == endIndex + 1)
{
newCsvStats.Events.Add(newEvent);
stripEventIndex++;
}
}
}
}
newCsvStats.metaData = metaData;
return(newCsvStats);
}
// This will average only those stats that exist in all the stat sets
// Stats are averaged per frame, and the the final length is be equal to the longest CSV
// If CSVs are of varying length, this means later frames will be averaged over fewer samples than earlier frames
public static CsvStats AverageByFrame(CsvStats[] statsToAvg, bool bStatsAvarage = false)
{
CsvStats avgStats = new CsvStats();
if (statsToAvg.Length > 0)
{
// We need to have all the frame per each stat in the file
int maxFrames = 0;
// Use the first as stat name basis
string[] statKeys = statsToAvg[0].Stats.Keys.ToArray();
foreach (string statName in statKeys)
{
int maxSamples = 0;
int statCount = 0;
foreach (CsvStats stats in statsToAvg)
{
// Remove from the set of new stats if
// it doesn't exist in one of the set.
if (stats.Stats.ContainsKey(statName))
{
maxSamples = Math.Max(stats.Stats[statName].samples.Count, maxSamples);
statCount++;
}
}
if (statCount == statsToAvg.Length && maxSamples > 0)
{
avgStats.AddStat(new StatSamples(statName));
maxFrames = Math.Max(maxFrames, maxSamples);
}
}
// Copy meta data
avgStats.metaData = statsToAvg[0].metaData;
if (avgStats.metaData != null)
{
foreach (CsvStats stats in statsToAvg)
{
avgStats.metaData.CombineAndValidate(stats.metaData);
}
}
foreach (string statName in avgStats.Stats.Keys)
{
// This should always exist
StatSamples avgSamples = avgStats.GetStat(statName);
if (avgSamples != null)
{
List <int> sampleCounts = new List <int>();
sampleCounts.AddRange(Enumerable.Repeat(0, maxFrames));
// Initialise sample to 0.0
avgSamples.samples.AddRange(Enumerable.Repeat(0.0f, maxFrames));
// Add samples from other stats
foreach (CsvStats stats in statsToAvg)
{
StatSamples statSamples = stats.GetStat(statName);
if ((statSamples != null) && (avgSamples.samples.Count >= statSamples.samples.Count))
{
// This should always be true: avgSamples.samples.Count >= statSamples.samples.Count
for (int i = 0; i < statSamples.samples.Count; i++)
{
avgSamples.samples[i] += statSamples.samples[i];
sampleCounts[i] += 1;
}
}
}
// Average the samples
for (int i = 0; i < avgSamples.samples.Count; i++)
{
avgSamples.samples[i] /= (float)sampleCounts[i];
}
}
if (bStatsAvarage)
{
avgSamples.ComputeAverageAndTotal();
}
}
}
return(avgStats);
}