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Added MovingAverage #219

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Added MovingAverage #219

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54 changes: 54 additions & 0 deletions Others/MovingAverage.java
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Original file line number Diff line number Diff line change
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package testing;

import java.util.ArrayList;


/**
* Simple class that adds values and returns the average over a set interval.
* AKA Interpolation.
*/
public class MovingAverage {

double intervalSize = 5;
ArrayList<Double> data = new ArrayList<Double>();

public MovingAverage(double size) {
this.intervalSize = size;
}

public MovingAverage() {
this(5);
}

//Adds a new data point and returns average.
public double register(double d) {
data.add(d);

//If theres more data than the set interval, cleave the data.
if(data.size() > intervalSize) {
cleave();
}

//Returns average of data set.
return sum()/data.size();
}

//Removes most outdated data point.
//Private to protect from null pointers.
private void cleave() {
data.remove(0);
}

//Adds all the data points. Riveting.
//Private to protect from null pointers.
private double sum() {
double s = 0;

for(int i = 0; i < data.size(); i++) {
s+=data.get(i);
}

return s;
}

}