Commit f201d448 authored by Administrator's avatar Administrator

avgSpeeds

parent 877599b4
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......@@ -304,7 +304,7 @@ class Activity {
..minHeartRate = recordList.minHeartRate()
..maxHeartRate = recordList.maxHeartRate()
..avgSpeedByMeasurements = recordList.avgSpeedByMeasurements()
..avgSpeedByTime = recordList.avgSpeedByTime()
..avgSpeedByTime = recordList.avgSpeedBySpeed()
..avgSpeedByDistance = recordList.avgSpeedByDistance()
..sdevSpeed = recordList.sdevSpeed()
..sdevPace = recordList.sdevPace()
......
......@@ -93,7 +93,7 @@ class Interval {
..minHeartRate = recordList.minHeartRate()
..maxHeartRate = recordList.maxHeartRate()
..avgSpeedByMeasurements = recordList.avgSpeedByMeasurements()
..avgSpeedByTime = recordList.avgSpeedByTime()
..avgSpeedByTime = recordList.avgSpeedBySpeed()
..avgSpeedByDistance = recordList.avgSpeedByDistance()
..sdevSpeed = recordList.sdevSpeed()
..sdevPace = recordList.sdevPace()
......
......@@ -192,7 +192,7 @@ class Lap {
..minHeartRate = recordList.minHeartRate()
..maxHeartRate = recordList.maxHeartRate()
..avgSpeedByMeasurements = recordList.avgSpeedByMeasurements()
..avgSpeedByTime = recordList.avgSpeedByTime()
..avgSpeedByTime = recordList.avgSpeedBySpeed()
..avgSpeedByDistance = recordList.avgSpeedByDistance()
..sdevSpeed = recordList.sdevSpeed()
..sdevPace = recordList.sdevPace()
......
......@@ -86,18 +86,18 @@ class RecordList<E> extends DelegatingList<E> {
return speeds.isNotEmpty ? speeds.mean() : -1;
}
double avgSpeedByTime() {
double avgSpeedBySpeed() {
final Map<DateTime, double> speedMap = <DateTime, double>{
for (final Event record in _records) record.timeStamp: record.speed
};
return speedMap.meanByTime();
return speedMap.meanBySpeed();
}
double avgSpeedByDistance() {
final Map<DateTime, double> speedMap = <DateTime, double>{
for (final Event record in _records) record.timeStamp: record.speed,
for (final Event record in _records) record.timeStamp: record.distance,
};
return speedMap.meanByTime();
return speedMap.meanByDistance();
}
double sdevSpeed() => _records
......
......@@ -17,7 +17,7 @@ extension StatisticFunctions on Map<DateTime, double> {
return sumOfValues / sumOfWeights;
}
double meanByDistance() {
double meanByDistanceAlt() {
double sumOfValues = 0;
double sumOfWeights = 0;
......@@ -35,4 +35,41 @@ extension StatisticFunctions on Map<DateTime, double> {
return sumOfValues / sumOfWeights;
}
double meanByDistance() {
double sumOfValues = 0;
double sumOfWeights = 0;
DateTime lastTimeStamp;
forEach((DateTime timeStamp, double distance) {
final int timeEvolved = lastTimeStamp != null
? timeStamp.difference(lastTimeStamp).inSeconds
: 0;
sumOfValues += distance;
sumOfWeights += timeEvolved;
lastTimeStamp = timeStamp;
});
return sumOfValues / sumOfWeights;
}
double meanBySpeed() {
double sumOfValues = 0;
double sumOfWeights = 0;
DateTime lastTimeStamp;
forEach((DateTime timeStamp, double speed) {
final int timeEvolved = lastTimeStamp != null
? timeStamp.difference(lastTimeStamp).inSeconds
: 0;
sumOfValues += speed * timeEvolved;
sumOfWeights += timeEvolved;
lastTimeStamp = timeStamp;
});
return sumOfValues / sumOfWeights;
}
}
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