Deep Ancient Current Era 1 AD - 1900 AD: 8 Euro samples + Anzick

[ScandinavianCelt]

Target: Greek_West_Taygetos
Chebyshev distance: 0.6577% / 0.00657660 | R5P
48.0 Italy_Medieval.SG
28.0 Ukraine_Medieval.SG
13.2 Turkey_PostMedieval
8.8 Turkey_Medieval
2.0 Italy_Medieval_EarlyModern.SG

Target: Greek_Trabzon
Chebyshev distance: 1.1071% / 0.01107107 | R5P
58.8 Turkey_Medieval
24.6 Russia_Caucasus_Medieval
10.0 Italy_Medieval.SG
6.6 Turkey_PostMedieval

Target: Greek_Thessaly
Chebyshev distance: 0.5261% / 0.00526111 | R5P
30.4 Spain_Medieval
27.8 Italy_Medieval.SG
20.6 Turkey_Medieval
19.6 Ukraine_Medieval.SG
1.6 Villa_Magna

Target: Greek_South_Tsakonia
Chebyshev distance: 0.8760% / 0.00876016 | R5P
49.8 Italy_Medieval.SG
22.2 Ukraine_Medieval.SG
10.6 Syria_TellMasaikh_Medieval_oAfrica.SG
10.6 Turkey_PostMedieval
6.8 Turkey_Medieval

Target: Greek_Peloponnese
Chebyshev distance: 0.8254% / 0.00825373 | R5P
49.4 Italy_Medieval.SG
29.4 Ukraine_Medieval.SG
14.2 Syria_TellMasaikh_Medieval_oAfrica.SG
6.6 Turkey_Medieval
0.4 Russia_Caucasus_Medieval

Target: Greek_North_Tsakonia
Chebyshev distance: 0.7264% / 0.00726367 | R5P
47.8 Italy_Medieval.SG
23.2 Ukraine_Medieval.SG
18.8 Turkey_Medieval
7.8 Turkey_PostMedieval
2.4 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_Messenia
Chebyshev distance: 0.8544% / 0.00854378 | R5P
29.2 Spain_Medieval
25.6 Ukraine_Medieval.SG
19.2 Turkey_Medieval
17.6 Italy_Medieval_EarlyModern.SG
8.4 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_Macedonia
Chebyshev distance: 0.7816% / 0.00781599 | R5P
27.6 Ukraine_Medieval.SG
27.0 Italy_Medieval.SG
25.6 Spain_Medieval
19.8 Turkey_Medieval

Target: Greek_Laconia
Chebyshev distance: 0.7325% / 0.00732537 | R5P
24.4 Ukraine_Medieval.SG
23.4 Italy_Medieval.SG
20.6 Spain_Medieval
17.8 Turkey_Medieval
13.8 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_Kos
Chebyshev distance: 0.7903% / 0.00790262 | R5P
39.0 Turkey_PostMedieval
36.2 Italy_Medieval.SG
12.2 Spain_Medieval
10.0 Syria_TellMasaikh_Medieval_oAfrica.SG
2.6 Villa_Magna

Target: Greek_Izmir
Chebyshev distance: 0.8207% / 0.00820744 | R5P
48.4 Italy_Medieval.SG
22.4 Ukraine_Medieval.SG
14.6 Syria_TellMasaikh_Medieval_oAfrica.SG
11.2 Turkey_PostMedieval
3.4 Russia_Caucasus_Medieval

Target: Greek_Elis
Chebyshev distance: 0.8037% / 0.00803657 | R5P
28.4 Ukraine_Medieval.SG
22.8 Italy_Medieval.SG
20.6 Spain_Medieval
15.4 Turkey_Medieval
12.8 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_East_Taygetos
Chebyshev distance: 0.6311% / 0.00631082 | R5P
25.8 Italy_Medieval.SG
23.4 Ukraine_Medieval.SG
20.2 Spain_Medieval
19.2 Turkey_Medieval
11.4 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_East_Macedonia_and_Thrace
Chebyshev distance: 0.7646% / 0.00764624 | R5P
46.0 Ukraine_Medieval.SG
22.6 Italy_Medieval_EarlyModern.SG
14.0 Italy_Medieval.SG
10.6 Turkey_Medieval
6.8 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_Dodecanese_Rhodes
Chebyshev distance: 1.0241% / 0.01024118 | R5P
47.0 Italy_Medieval.SG
23.0 Turkey_Medieval
20.8 Syria_TellMasaikh_Medieval_oAfrica.SG
7.4 Ukraine_Medieval.SG
1.8 Russia_Caucasus_Medieval

Target: Greek_Dodecanese
Chebyshev distance: 0.8570% / 0.00856996 | R5P
32.2 Italy_Medieval.SG
31.6 Turkey_Medieval
16.6 Syria_TellMasaikh_Medieval_oAfrica.SG
13.2 Spain_Medieval
6.4 Ukraine_Medieval.SG

Target: Greek_Deep_Mani
Chebyshev distance: 0.8290% / 0.00829047 | R5P
28.2 Italy_Medieval.SG
21.2 Turkey_Medieval
18.6 Spain_Medieval
17.6 Syria_TellMasaikh_Medieval_oAfrica.SG
14.4 Ukraine_Medieval.SG

Target: Greek_Cyclades_Tinos
Chebyshev distance: 1.1658% / 0.01165798 | R5P
46.2 Italy_Medieval.SG
23.4 Turkey_PostMedieval
16.4 Ukraine_Medieval.SG
11.4 Syria_TellMasaikh_Medieval_oAfrica.SG
2.6 Russia_EarlyMedieval_Heshui_Mohe_1

Target: Greek_Cyclades_Milos
Chebyshev distance: 0.8168% / 0.00816808 | R5P
30.4 Turkey_PostMedieval
27.4 Italy_Medieval.SG
23.0 Spain_Medieval
12.6 Italy_Medieval_EarlyModern.SG
6.6 Ukraine_Medieval.SG

Target: Greek_Cyclades_Kea
Chebyshev distance: 0.8804% / 0.00880387 | R5P
43.2 Turkey_PostMedieval
24.8 Spain_Medieval
14.8 Italy_Medieval.SG
10.4 Ukraine_Medieval.SG
6.8 Estonia_Medieval.SG

Target: Greek_Cyclades_Amorgos
Chebyshev distance: 1.1100% / 0.01110040 | R5P
41.0 Spain_Medieval
35.8 Turkey_PostMedieval
11.0 Turkey_Medieval
7.2 Syria_TellMasaikh_Medieval_oAfrica.SG
5.0 Funen

Target: Greek_Crete_Lasithi
Chebyshev distance: 0.7682% / 0.00768201 | R5P
43.8 Italy_Medieval.SG
16.4 Ukraine_Medieval.SG
15.4 Turkey_Medieval
12.4 Turkey_PostMedieval
12.0 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_Crete_Heraklion
Chebyshev distance: 0.6925% / 0.00692454 | R5P
27.2 Turkey_Medieval
21.8 Italy_Medieval_EarlyModern.SG
18.4 Turkey_PostMedieval
17.8 Italy_Medieval.SG
14.8 Ukraine_Medieval.SG

Target: Greek_Crete_Chania
Chebyshev distance: 1.0127% / 0.01012684 | R5P
26.8 Italy_Medieval.SG
24.6 Ukraine_Medieval.SG
19.8 Turkey_PostMedieval
17.0 Syria_TellMasaikh_Medieval_oAfrica.SG
11.8 Turkey_Medieval

Target: Greek_Crete
Chebyshev distance: 0.6371% / 0.00637080 | R5P
44.0 Italy_Medieval.SG
15.4 Ukraine_Medieval.SG
15.2 Turkey_PostMedieval
15.0 Syria_TellMasaikh_Medieval_oAfrica.SG
10.4 Turkey_Medieval

Target: Greek_Corinthia
Chebyshev distance: 0.9269% / 0.00926852 | R5P
26.6 Ukraine_Medieval.SG
25.8 Spain_Medieval
21.2 Italy_Medieval.SG
13.4 Turkey_Medieval
13.0 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_Central_Macedonia
Chebyshev distance: 0.8140% / 0.00813958 | R5P
49.8 Italy_Medieval.SG
37.2 Ukraine_Medieval.SG
10.6 Syria_TellMasaikh_Medieval_oAfrica.SG
2.4 Turkey_PostMedieval

Target: Greek_Central_Anatolia
Chebyshev distance: 0.7308% / 0.00730807 | R5P
36.8 Italy_Medieval.SG
33.0 Turkey_Medieval
28.6 Turkey_PostMedieval
1.6 Ukraine_Medieval.SG

Target: Greek_Argolis
Chebyshev distance: 0.8531% / 0.00853082 | R5P
53.2 Italy_Medieval.SG
27.4 Ukraine_Medieval.SG
10.2 Turkey_Medieval
6.0 Syria_TellMasaikh_Medieval_oAfrica.SG
3.2 Turkey_PostMedieval

Target: Greek_Arcadia
Chebyshev distance: 0.8534% / 0.00853389 | R5P
30.2 Ukraine_Medieval.SG
21.6 Italy_Medieval.SG
20.0 Spain_Medieval
15.2 Turkey_Medieval
13.0 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_Apulia
Chebyshev distance: 0.7625% / 0.00762521 | R5P
32.2 Italy_Medieval.SG
23.8 Spain_Medieval
22.4 Turkey_Medieval
11.0 Ukraine_Medieval.SG
10.6 Syria_TellMasaikh_Medieval_oAfrica.SG

Target: Greek_Achaea
Chebyshev distance: 0.7528% / 0.00752770 | R5P
53.4 Italy_Medieval.SG
28.0 Ukraine_Medieval.SG
9.4 Syria_TellMasaikh_Medieval_oAfrica.SG
5.4 Turkey_PostMedieval
3.8 Turkey_Medieval

That's super cool. They all look like much better distances then probably most of the people here would be getting I don't know it's frustrating because there needs to be more central European in this calculator and Germany is lacking as well as the Czech Republic and Austria and Hungary Swiss peoples and then I'm sure there's other groups I can't even think of but anyway it's the calculator sort of a screw up it needs more samples in my opinion to be correct at least throughout Central Europe probably large parts of France as well anyway live and learn

[Voskos]

That's super cool. They all look like much better distances then probably most of the people here would be getting I don't know it's frustrating because there needs to be more central European in this calculator and Germany is lacking as well as the Czech Republic and Austria and Hungary Swiss peoples and then I'm sure there's other groups I can't even think of but anyway it's the calculator sort of a screw up it needs more samples in my opinion to be correct at least throughout Central Europe probably large parts of France as well anyway live and learn

use experimental mode for better distances:
https://vahaduo.github.io/chebyshev/

[ScandinavianCelt]

use experimental mode for better distances:
https://vahaduo.github.io/chebyshev/

I'll check it out thanks for pointing that out and do you know how accurate the custom PCA is on the official site everyone uses because I found out some interesting distances that shock me on that site you should try plotting some of your results into that site together with your own and see what you plot out with it's pretty interesting I think especially when you aggregate groups like Russia Smolensk is closer to me than Ireland in some ways although they both are almost identically on top of me with a couple samples but I don't know it seems strange to me

[ScandinavianCelt]

use experimental mode for better distances:
https://vahaduo.github.io/chebyshev/

Target: Brad_AncestryDNA_Scaled_Official
Chebyshev distance: 0.6512% / 0.00651206
49.4 Piedmont
18.0 Spain_Medieval
13.8 Estonia_Medieval.SG
8.6 Oland
3.8 Italy_Medieval_EarlyModern.SG
1.8 Turkey_Medieval
1.6 Pakistan_RajaGira_Medieval
1.4 Pakistan_Singoor_Medieval
1.2 Pakistan_Barikot_Medieval_2
0.4 Funen

Chebyshev dist: Brad_AncestryDNA_Scaled_Official
0.01239192 Piedmont:Italy_North_EarlyMedieval_Langobards_1:CL 146
0.01443272 Oland:Sweden_Viking.SG:VK337_noUDG.SG
0.01739108 Funenenmark_Viking.SG:VK373_noUDG.SG
0.02015474 Langelandenmark_Viking.SG:VK275_noUDG.SG
0.02130208 Nordic:Faroes_EarlyModern.SG:VK241_noUDG.SG
0.02769108 Oxford:England_Viking.SG:VK177_noUDG.SG
0.03029908 Funenenmark_Viking.SG:VK278_noUDG.SG
0.03042908 Villa_Magna:Italy_Medieval_EarlyModern_oCentralEur opean.SG:R62.SG
0.03399316 Russia_Sunghir_Medieval.SG:Sunghir6_noUDG.SG
0.03523188 Ukraine_Medieval.SG:VK541_noUDG.SG
0.04225016 Estonia_Medieval.SG:s19_IVLS09KT_1_noUDG.SG
0.04388222 Spain_Medieval:I10897
0.04411486 Estonia_Medieval.SG:s19_IIa_1_noUDG.SG
0.04527816 Estonia_Medieval.SG:s19_IIf_1_noUDG.SG
0.04955246 Spain_Medieval:I10853
0.05245946 Spain_Medieval:I10895
0.05568946 Spain_Medieval:I10892
0.05730446 Spain_Medieval:I10852
0.07305044 Russia_Caucasus_Medieval:Anapa-9.SG
0.07316914 Russia_Caucasus_Medieval:Anapa-10.SG
0.07926846 Italy_Medieval_EarlyModern.SG:R60.SG
0.07958014 Russia_Caucasus_Medieval:Anapa-11.SG
0.07991446 Italy_Medieval.SG:VK536_noUDG.SG
0.11352114 Syria_TellMasaikh_Medieval.SG:R3359.SG
0.11503014 Turkey_PostMedieval:I4539

[ScandinavianCelt]

Target: PARENT.1.IMPUTED.DNAGEN.RSIDMERGED.OFFICIAL.G25
Chebyshev distance: 0.7008% / 0.00700809 | ADC: 0.5x RC
45.0 Oland
23.8 Piedmont
16.8 Russia_Sunghir_Medieval.SG
7.4 Syria_TellMasaikh_Medieval.SG
5.2 Nordic
1.8 Spain_Medieval

Target: PARENT.2.IMPUTED.DNAGEN.RSIDMERGED.OFFICIAL.G25
Chebyshev distance: 0.8637% / 0.00863733 | ADC: 0.5x RC
73.8 Piedmont
16.2 Oland
5.6 Spain_Medieval
3.0 Italy_Medieval_EarlyModern.SG
1.4 Syria_TellMasaikh_Medieval.SG

Brad.DNAGen.MrgImp
Chebyshev distance: 0.7150% / 0.00715049 | ADC: 0.5x RC
61.8 Piedmont
12.4 Oland
7.4 Russia_Sunghir_Medieval.SG
6.4 Funen
4.6 Spain_Medieval
3.8 Syria_TellMasaikh_Medieval.SG
2.6 Estonia_Medieval.SG
0.6 Nordic
0.4 Italy_Medieval_EarlyModern.SG

[Voskos]

I'll check it out thanks for pointing that out and do you know how accurate the custom PCA is on the official site everyone uses because I found out some interesting distances that shock me on that site you should try plotting some of your results into that site together with your own and see what you plot out with it's pretty interesting I think especially when you aggregate groups like Russia Smolensk is closer to me than Ireland in some ways although they both are almost identically on top of me with a couple samples but I don't know it seems strange to me

I guess PCAs work differently, each of the 25 components (coordinates) have different/unequal weights, if i understand it correctly, whereas in the normal vahaduo algorithms (both classic and experimental), the 25 components/coordinates have equal weights in the calculation.

Also important:

Keep in mind that PCs are ranked by how much they describe the data. PC1 reveals the most variation, while PC2 reveals the second most variation. Therefore, differences among clusters along PC1 axis are actually larger than the similar-looking distances along PC2 axis.

https://bioturing.medium.com/princip...y-894e8f6f4bfb

[ScandinavianCelt]

use experimental mode for better distances:
https://vahaduo.github.io/chebyshev/

This is regular vahaduo R3P Modern Scaled G25 with my official Ancestry coords vs Chebyshev:

Target: Brad_AncestryDNA_Scaled_Official
Distance: 0.4716% / 0.00471591 | R3P
64.4 Dutch
29.4 Orcadian
6.2 Jat_Uttar_Pradesh

This is with chebyshev experimental distance:

Target: Brad_AncestryDNA_Scaled_Official
Chebyshev distance: 0.1797% / 0.00179733 | R3P
47.2 Orcadian
45.0 Swedish
7.8 Pamiri_Ishkashim


Is the chebyshev better?

[Gallop]

Target: Gallop_scaled
Distance: 2.1020% / 0.02101973
91.8 Spain_Medieval
4.2 Oxford
4.0 Piedmont

Target: Father_scaled
Distance: 2.7049% / 0.02704943
95.6 Spain_Medieval
3.6 Estonia_Medieval.SG
0.8 Oxford

Target: brother_scaled
Distance: 2.5669% / 0.02566878
100.0 Spain_Medieval

[Voskos]

This is regular vahaduo R3P Modern Scaled G25 with my official Ancestry coords vs Chebyshev:

Target: Brad_AncestryDNA_Scaled_Official
Distance: 0.4716% / 0.00471591 | R3P
64.4 Dutch
29.4 Orcadian
6.2 Jat_Uttar_Pradesh

This is with chebyshev experimental distance:

Target: Brad_AncestryDNA_Scaled_Official
Chebyshev distance: 0.1797% / 0.00179733 | R3P
47.2 Orcadian
45.0 Swedish
7.8 Pamiri_Ishkashim


Is the chebyshev better?

Intuitively I would say the algorithm seems to work better on chebyshev mode, than it does with normal. It detects for example your swedish ancestry, which normal mode doesn't. Same happens with me, I always get more relevant groups (given my ancestry) on experimental.
The way I see it, experimental:
1-gives lower distances
2-yields better results (more realistic ancestry sources in relation to your real ancestry).

[Dušan]

R3P standard mode:

Target: Dušan_scaled
Distance: 2.4736% / 0.02473616 | R3P
60.6 Russia_Sunghir_Medieval.SG
30.4 Italy_Medieval_EarlyModern.SG
9.0 Spain_Medieval


R3P Chebyshev mode:

Target: Dušan_scaled
Chebyshev distance: 1.2632% / 0.01263202 | R3P
44.6 Russia_Sunghir_Medieval.SG
43.0 Spain_Medieval
12.4 Ukraine_Medieval.SG