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#96 -- Fix time series generation

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Anton Romanov 2024-05-13 00:07:41 +04:00
parent eb37dd0c8c
commit 8bcdff3ba1
1 changed files with 27 additions and 1 deletions
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28
src/main/java/ru/ulstu/extractor/generation/service/GenerationService.java
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@ -18,6 +18,7 @@ import java.util.List;
public class GenerationService {
private final TimeSeriesService timeSeriesService;
private final BranchService branchService;
private final static double RANDOM_WEIGHT = 0.1;
public GenerationService(TimeSeriesService timeSeriesService,
BranchService branchService) {
@ -31,10 +32,35 @@ public class GenerationService {
Arrays.stream(TimeSeriesType.values()).forEach(tsType -> {
List<TimeSeriesValue> tsValues = new ArrayList<>();
for (int i = 0; i < generationForm.getTsLength(); i++) {
tsValues.add(new TimeSeriesValue(DateUtils.addDays(startDate, i), (double) i));
tsValues.add(new TimeSeriesValue(DateUtils.addDays(startDate, i),
getNextAdditiveValue(tsValues, generationForm)));
}
final String tsName = "Генерированный " + tsType.getDescription();
timeSeriesService.save(tsName, branch, tsType, tsValues);
});
}
private double getNextAdditiveValue(List<TimeSeriesValue> timeSeriesValues, GenerationForm generationForm) {
double newValue;
int maxTryCount = 10;
do {
if (timeSeriesValues.isEmpty()) {
if (generationForm.getBaseTendency() > 0) {
newValue = 0.1 * Math.random() * (generationForm.getMax() - generationForm.getMin());
} else {
newValue = generationForm.getMax() - 0.1 * Math.random() * (generationForm.getMax() - generationForm.getMin());
}
} else {
newValue = timeSeriesValues.get(timeSeriesValues.size() - 1).getValue()
+ Math.random() * generationForm.getBaseTendency()
* ((generationForm.getMax() - generationForm.getMin()) / generationForm.getTsLength())
* generationForm.getTendencyDynamic()
+ RANDOM_WEIGHT * (Math.random() - 0.5) * (generationForm.getMax() - generationForm.getMin());
}
maxTryCount--;
} while (((newValue <= generationForm.getMin())
|| (newValue >= generationForm.getMax()))
&& (maxTryCount > 0));
return newValue;
}
}