Calculate standard deviation of integers with C# .NET

Here comes a simple extension method to calculate the standard deviation of a list of integers:

```public static double GetStandardDeviation(this IEnumerable<int> values)
{
double standardDeviation = 0;
int[] enumerable = values as int[] ?? values.ToArray();
int count = enumerable.Count();
if (count > 1)
{
double avg = enumerable.Average();
double sum = enumerable.Sum(d => (d - avg) * (d - avg));
standardDeviation = Math.Sqrt(sum / count);
}
return standardDeviation;
}
```

Here’s how you can call this method:

```List<int> ints = new List<int>() { 4, 7, 3, 9, 13, 90, 5, 25, 13, 65, 34, 76, 54, 12, 51, 23, 3, 1, 7 };
double stdev = ints.GetStandardDeviation();
```

View all various C# language feature related posts here.

Calculate standard deviation of integers with C# .NET

Here comes a simple extension method to calculate the standard deviation of a list of integers:

```public static double GetStandardDeviation(this IEnumerable<int> values)
{
double standardDeviation = 0;
int[] enumerable = values as int[] ?? values.ToArray();
int count = enumerable.Count();
if (count > 1)
{
double avg = enumerable.Average();
double sum = enumerable.Sum(d => (d - avg) * (d - avg));
standardDeviation = Math.Sqrt(sum / count);
}
return standardDeviation;
}
```

Here’s how you can call this method:

```List<int> ints = new List<int>() { 4, 7, 3, 9, 13, 90, 5, 25, 13, 65, 34, 76, 54, 12, 51, 23, 3, 1, 7 };
double stdev = ints.GetStandardDeviation();
```

View all various C# language feature related posts here.

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