Java Utililty Methods Collection Mean

List of utility methods to do Collection Mean

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Description

The list of methods to do Collection Mean are organized into topic(s).

Method

Doublemean(Collection dist)
mean 
if (dist != null && !dist.isEmpty()) {
    double sum = 0d;
    int count = 0;
    for (Double val : dist) {
        if (val != null) {
            sum += val;
            count++;
    return count > 0 ? sum / count : null;
return null;
doublemean(Collection vector)
mean 
return mean(vector.toArray(new Number[vector.size()]));
doublemean(final Collection values)
Calculates the mean of a Collection 
return sum(values) / values.size();
doublemean(final Collection values)
mean 
final double total = sum(values);
return total / values.size();
double[]meanAndVariance(Collection vector)
mean And Variance 
return meanAndVariance(vector.toArray(new Number[vector.size()]), true);