public void TestLinSeries()
{
double[] target = { 1, 2, 3, 4, 5 };
var result = Dsp.LinSeries(1, 5, 5).ToReadOnlyList();
FilterAssert.ListsAreReasonablyClose(target, result);
Assert.Catch <ArgumentOutOfRangeException>(() => Dsp.LinSeries(1, 5, 1));
}
/// <summary>
/// Initializes a new instance of the <see cref="UniformSeries" /> class.
/// </summary>
/// <param name="from">The first value of the series.</param>
/// <param name="to">The last value of the series.</param>
/// <param name="length">Determines how many values (including first and last) the series should contain.</param>
/// <param name="logarithmic">Determines whether the series should be on a linear or a logarithmic scale.</param>
public UniformSeries(double from, double to, int length, bool logarithmic = false) :
base(logarithmic
? Dsp.LogSeries(from, to, length)
: Dsp.LinSeries(from, to, length),
logarithmic)
{
this.From = from;
this.To = to;
this.Length = length;
}
/// <summary>
/// Calculates the even-spaced frequency points from 0 Hz (DC) to Nyquist frequency (SampleRate/2) representing the
/// positive part of the
/// frequency axis of a signal of length N with SampleRate in time domain.
/// </summary>
/// <param name="samplerate">The Samplerate of the signal in time domain</param>
/// <param name="n">The Length of the signal in time domain</param>
/// <returns>Array of frequencies</returns>
public static IEnumerable <double> GetFrequencies(double samplerate, int n)
{
return(Dsp.LinSeries(0, samplerate * 0.5, (n >> 1) + 1));
}
