public static void Draw(double[] freqs, double[] mags)
{
//double freq_max = 0;
//double mag_max = -100;
//const double freq_win_min = 8; // was 7
//const double freq_win_max = 13;
//var sz = freqs.Length / 2;
//for (int i = 0; i < sz; i++)
//{
// if (freqs[i] >= freq_win_min && freqs[i] <= freq_win_max && mags[i] > mag_max)
// {
// freq_max = freqs[i];
// mag_max = mags[i];
// }
//}
//chart.Series[2].Points.AddY(freq_max);
(var min_bin, var max_bin) = FFT.CalcBin(FREQ_MIN_ALPHA, FREQ_MAX_ALPHA, freqs);
// частота максимума
double freq_max2 = 0;
double mag_max2 = -100;
for (int i = min_bin; i <= max_bin; i++)
{
if (mags[i] > mag_max2)
{
freq_max2 = freqs[i];
mag_max2 = mags[i];
}
}
s_max.Points.AddY(freq_max2);
// взвешенное среднее
double mult = 0;
double sum = 0;
for (int i = min_bin; i <= max_bin; i++)
{
mult += mags[i] * freqs[i];
sum += mags[i];
}
var weighted = mult / sum;
s_weighted.Points.AddY(weighted);
}
