/// <summary>
/// Estimates the p-Percentile value from the provided samples.
/// If a non-integer Percentile is needed, use Quantile instead.
/// Approximately median-unbiased regardless of the sample distribution (R8).
/// </summary>
/// <param name="data">The data sample sequence.</param>
/// <param name="p">Percentile selector, between 0 and 100 (inclusive).</param>
public static double Percentile(this IEnumerable <double?> data, int p)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
var array = data.Where(d => d.HasValue).Select(d => d.Value).ToArray();
return(ArrayStatistics.PercentileInplace(array, p));
}
/// <summary>
/// Estimates the p-Percentile value from the provided samples.
/// If a non-integer Percentile is needed, use Quantile instead.
/// Approximately median-unbiased regardless of the sample distribution (R8).
/// </summary>
/// <param name="data">The data sample sequence.</param>
/// <param name="p">Percentile selector, between 0 and 100 (inclusive).</param>
public static double Percentile(this IEnumerable <double?> data, int p)
{
var array = data.Where(d => d.HasValue).Select(d => d.Value).ToArray();
return(ArrayStatistics.PercentileInplace(array, p));
}
/// <summary>
/// Estimates the p-Percentile value from the provided samples.
/// If a non-integer Percentile is needed, use Quantile instead.
/// Approximately median-unbiased regardless of the sample distribution (R8).
/// </summary>
/// <param name="data">The data sample sequence.</param>
/// <param name="p">Percentile selector, between 0 and 100 (inclusive).</param>
public static double Percentile(this IEnumerable <double> data, int p)
{
var array = data.ToArray();
return(ArrayStatistics.PercentileInplace(array, p));
}