Created
December 8, 2023 17:14
-
-
Save pukpr/fcc9ba38c5f92bde0b53dc95c44ff7dc to your computer and use it in GitHub Desktop.
Dynamic Time Warping Distance
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
function DTW_Distance(X, Y: in Data_Pairs; Window_Size: Positive) return Long_Float is | |
N : Positive := X'Length; | |
type Real_Array is array(X'First - Window_Size .. X'Last + Window_Size) of Long_Float; | |
DTW_Current, DTW_Previous : Real_Array := (others => Long_Float'Last); | |
begin | |
DTW_Previous(X'First) := 0.0; | |
for I in X'First .. X'Last loop | |
DTW_Current(X'First) := Long_Float'Last; -- Reset current row | |
for J in Integer'Max(X'First, I - Window_Size) .. Integer'Min(X'Last, I + Window_Size) loop | |
declare | |
Cost : Long_Float := Abs(X(I).Value - Y(J).Value); | |
Min_Cost : Long_Float; | |
J_Previous : Integer := Integer'Max(J - 1, Y'First); | |
begin | |
-- Compute minimum cost considering the DTW constraint | |
Min_Cost := Long_Float'Min( Long_Float'Min( | |
DTW_Previous(J_Previous), | |
DTW_Current(J_Previous)), | |
(if J > Y'First then DTW_Previous(J) else Long_Float'Last) | |
); | |
DTW_Current(J) := Cost + Min_Cost; | |
end; | |
end loop; | |
-- Swap the rows | |
DTW_Previous := DTW_Current; | |
end loop; | |
return 1.0/DTW_Current(N); | |
end DTW_Distance; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
QBO 30
Tried to align more with the 18.6 modulation, removing the strong 4.4y and replacing it with interference of Draconic+ and Anomalistic, leading to the beat of 4.53 = 1/(1/8.85+12/18.6)
CC 0.7694682017 0.8869879290 6 1
-0.04231616902:dLOD:
PS C:\Users\pp\github\pukpr\GeoEnergyMath\qbo> notepad enso_opt.exe.resp
PS C:\Users\pp\github\pukpr\GeoEnergyMath\qbo> ..\io\backup qbo30dtw9nonlin1bCCslope1965-1980c-modulate2_tropphase1-wow3b-harmmHighccDRACPPwow.5gwow3-4pt53align18pt6i
Note that the 18.6 year modulation overlays better.
![image](https://private-user-images.githubusercontent.com/2855758/318230123-2a6277a6-cb3f-4bf8-8c1f-3a4e025fbf04.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.7Y1fkE0A6qP_JnLkc-R6IXIjnoQ4AjdbCWCft_fgzw8)
list
4.000000
-0.142618 w_A
2.30E+00
1.14E+00 w_D
9.04E-01
3.05E-01 w_T
9.22E-03
4.10E-02 w_A2
1.29E+00
3.17E-01 w_DD
-6.86E-02
3.66E-01 w_N
-5.42E-02
2.08E-01 w_N2
-9.36E-02
7.38E-01 w_P
-5.14E-02
2.61E-01 w_P2
-1.18E-01
6.25E-01 w_6
5.71E-02
1.99E-01 w_453
-4.95E-02
3.19E-01 w_d2
1.14E+00
6.67E-01 w_t2
-5.22E-01
-5.98E-02 w_a6 18.6 mod of w_a
-8.29E-01
=+$F$2*(1+$F$3SIN(w_at+$F$4)+$F$29SIN(w_a6t+$F$30)+$F$9SIN(w_a2t+$F$10))(1+$F$5COS(w_dt+$F$6)+$F$7COS(w_tt+$F$8)+$F$11COS(w_ddt+$F$12))-$F$2 +$F$13COS(w_Nt+$F$14)+$F$15COS(w_N2t+$F$16)+$F$17COS(w_pt+$F$18)+$F$19COS(w_p2t+$F$20)+$F$21COS(w_6t+$F$22)+$F$23COS(w_453t+$F$24)+$F$25COS(w_d2t+$F$26) +$F$27COS(w_t2*t+$F$28)