Java Utililty Methods List Average

for (Object[] objects : list) {
    double div = Double.valueOf(objects[InColumn1].toString());
    double div2 = Double.valueOf(objects[InColumn2].toString());
    if (div2 != 0) {
        objects[resultColumn] = div / div2;
return list;
...

long sum = 0L;
int i = 0;
for (long x : vals) {
    if (i > maxI)
        break;
    sum += x;
    i++;
return (1.0 * sum) / i;

Double result = null;
double allAdded = 0;
int numNulls = 0;
for (Iterator iterator = collected.iterator(); iterator.hasNext();) {
    Object obj = iterator.next();
    Number value = (Number) obj;
    if (value != null) {
        allAdded += value.doubleValue();
...

double sum = 0.0d;
int count = 0;
for (int i = 0; i < arr.size(); i++) {
    if (!Double.isNaN(arr.get(i))) {
        sum += arr.get(i);
        count++;
return sum / ((double) count);

return sum(list) / list.size();

double sum = 0;
for (Double number : numbers)
    sum += number;
return sum / numbers.size();

double total = 0.0;
for (double d : observations) {
    total += d;
return total / observations.size();

if (collection == null || collection.size() == 0)
    return 9;
if (collection.size() == 1)
    return collection.get(0);
double average = collection.get(0);
for (int i = 1; i < collection.size(); i++)
    average = i * (average + collection.get(i).doubleValue() / i) / (i + 1);
return average;
...

final double size = values.size();
double avg = 0;
for (final double v : values)
    avg += v / size;
return avg;

if (logList.size() == 1)
    return logList.get(0);
double[] logs = new double[logList.size()];
for (int i = 0; i < logs.length; i++) {
    logs[i] = logList.get(i);
return averageLog(logs);