window_first_deriv
window_first_deriv.RdFirst derivative window for FFT
Examples
# nuttall window
window_first_deriv(100, 0.355768, 0.487396, 0.144232, 0.012604)
#> [1] -2.428613e-17 4.868310e-05 2.012197e-04 4.770849e-04 9.087743e-04
#> [6] 1.541840e-03 2.434900e-03 3.659584e-03 5.300370e-03 7.454267e-03
#> [11] 1.023028e-02 1.374863e-02 1.813962e-02 2.354226e-02 3.010236e-02
#> [16] 3.797037e-02 4.729873e-02 5.823890e-02 7.093796e-02 8.553498e-02
#> [21] 1.021571e-01 1.209154e-01 1.419008e-01 1.651801e-01 1.907916e-01
#> [26] 2.187419e-01 2.490023e-01 2.815062e-01 3.161468e-01 3.527757e-01
#> [31] 3.912024e-01 4.311948e-01 4.724798e-01 5.147460e-01 5.576469e-01
#> [36] 6.008045e-01 6.438150e-01 6.862537e-01 7.276823e-01 7.676552e-01
#> [41] 8.057276e-01 8.414626e-01 8.744393e-01 9.042607e-01 9.305605e-01
#> [46] 9.530106e-01 9.713269e-01 9.852753e-01 9.946760e-01 9.994072e-01
#> [51] 9.994072e-01 9.946760e-01 9.852753e-01 9.713269e-01 9.530106e-01
#> [56] 9.305605e-01 9.042607e-01 8.744393e-01 8.414626e-01 8.057276e-01
#> [61] 7.676552e-01 7.276823e-01 6.862537e-01 6.438150e-01 6.008045e-01
#> [66] 5.576469e-01 5.147460e-01 4.724798e-01 4.311948e-01 3.912024e-01
#> [71] 3.527757e-01 3.161468e-01 2.815062e-01 2.490023e-01 2.187419e-01
#> [76] 1.907916e-01 1.651801e-01 1.419008e-01 1.209154e-01 1.021571e-01
#> [81] 8.553498e-02 7.093796e-02 5.823890e-02 4.729873e-02 3.797037e-02
#> [86] 3.010236e-02 2.354226e-02 1.813962e-02 1.374863e-02 1.023028e-02
#> [91] 7.454267e-03 5.300370e-03 3.659584e-03 2.434900e-03 1.541840e-03
#> [96] 9.087743e-04 4.770849e-04 2.012197e-04 4.868310e-05 -2.428613e-17