Verify distribution uniformity/Naive: Difference between revisions

=={{header|C#}}==

{{trans|Java}}

<syntaxhighlight lang="C#">

using System;

using System.Collections.Generic;

using System.Linq;

public class Test

{

static void DistCheck(Func<int> func, int nRepeats, double delta)

{

var counts = new Dictionary<int, int>();

for (int i = 0; i < nRepeats; i++)

{

int result = func();

if (counts.ContainsKey(result))

counts[result]++;

else

counts[result] = 1;

}

double target = nRepeats / (double)counts.Count;

int deltaCount = (int)(delta / 100.0 * target);

foreach (var kvp in counts)

{

if (Math.Abs(target - kvp.Value) >= deltaCount)

Console.WriteLine("distribution potentially skewed for '{0}': '{1}'", kvp.Key, kvp.Value);

}

foreach (var key in counts.Keys.OrderBy(k => k))

{

Console.WriteLine("{0} {1}", key, counts[key]);

}

}

public static void Main(string[] args)

{

DistCheck(() => new Random().Next(1, 6), 1_000_000, 1);

}

}

</syntaxhighlight>

{{out}}

<pre>

1 200274

2 199430

3 199418

4 200473

5 200405

</pre>