Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 29

Thread: Incorporating individual samples when modelling oneself, or exclusively averages?

  1. #11
    Registered Users
    Posts
    160
    Sex
    Omitted

    Quote Originally Posted by Nino90 View Post
    Well explained.
    If I use the individual Swedish samples, It works best when choosing the ones who fit closest to my mother.
    How do you know which one fits closest to your mother?

    Quote Originally Posted by Nino90 View Post
    Also notice the bad fit.
    Is ~3% really that bad of a fit?
    Last edited by bovefex; 02-14-2021 at 01:57 PM. Reason: Typo.

  2. #12
    Registered Users
    Posts
    2,546
    Sex
    Location
    Sweden
    Ethnicity
    Italo-Germanic
    Nationality
    Swedish
    Y-DNA (P)
    R-L2 / R1b-U152
    mtDNA (M)
    H1a1

    Sweden Italy Italy 1861-1946 Sami Vatican Italy Tuscany
    Quote Originally Posted by bovefex View Post
    How do you know which one fits closest to your mother?



    Is ~3% really that bad of a fit?
    I just runned her G25 scales against all modern individual samples and selected the first 5.

    I would say anything above 2.0 is bad. But of course it depends on if you are using individual samples vs average samples and also ancient most often give higher fits.

    I am not an expert. But that is what I have heard.
    Hidden Content


    Target: Nino_scaled
    Distance: 1.6700% / 0.01669968 | R3P
    53.6 Goth_Kowalewko = Germanic
    39.2 Levant_LBN_MA_o6 = South Euro
    7.2 RUS_Khaptsagai_IA = Steppe + Siberian

  3. #13
    Registered Users
    Posts
    160
    Sex
    Omitted

    Quote Originally Posted by Nino90 View Post
    I just runned her G25 scales against all modern individual samples and selected the first 5.

    I would say anything above 2.0 is bad. But of course it depends on if you are using individual samples vs average samples and also ancient most often give higher fits.

    I am not an expert. But that is what I have heard.
    Why not just use her coordinates to model yourself then?

  4. #14
    Gold Class Member
    Posts
    4,729
    Sex
    Location
    Calne,England
    Ethnicity
    British and Irish
    Nationality
    Great Britain
    Y-DNA (P)
    E-Y45878
    mtDNA (M)
    H67

    United Kingdom Scotland England Ireland
    Given that individual samples can be more accurate is there a simple , not overly time consuming,way to choose which individual samples to use?
    Please support Mental health research and world community grid

    Hidden Content
    Hidden Content
    Hidden Content
    Hidden Content

  5. The Following User Says Thank You to firemonkey For This Useful Post:

     bovefex (02-14-2021)

  6. #15
    Registered Users
    Posts
    2,546
    Sex
    Location
    Sweden
    Ethnicity
    Italo-Germanic
    Nationality
    Swedish
    Y-DNA (P)
    R-L2 / R1b-U152
    mtDNA (M)
    H1a1

    Sweden Italy Italy 1861-1946 Sami Vatican Italy Tuscany
    Quote Originally Posted by bovefex View Post
    Why not just use her coordinates to model yourself then?
    It does not work so good.

    Here is average samples as compression, Actually they are quite similar.
    But as you see the distance is bigger. Maybe because I am a mixed European.

    Target: Nino_scaled
    Distance: 2.9466% / 0.02946597
    64.6 Swedish
    26.6 Italian_Tuscany
    8.8 Saami
    Target: Nino_scaled
    Distance: 2.8741% / 0.02874130
    61.6 Swedish
    30.6 Swiss_Italian
    7.8 Saami
    Target: Brother_scaled
    Distance: 3.0081% / 0.03008052
    65.2 Swedish
    25.4 Italian_Tuscany
    9.4 Saami
    Target: Brother_scaled
    Distance: 2.9466% / 0.02946591
    62.2 Swedish
    29.2 Swiss_Italian
    8.6 Saami
    I used the Swiss_Italian as a proxy for North Italian ancestry.
    Hidden Content


    Target: Nino_scaled
    Distance: 1.6700% / 0.01669968 | R3P
    53.6 Goth_Kowalewko = Germanic
    39.2 Levant_LBN_MA_o6 = South Euro
    7.2 RUS_Khaptsagai_IA = Steppe + Siberian

  7. The Following User Says Thank You to Nino90 For This Useful Post:

     bovefex (02-14-2021)

  8. #16
    Registered Users
    Posts
    160
    Sex
    Omitted

    Quote Originally Posted by Nino90 View Post
    It does not work so good.

    Here is average samples as compression, Actually they are quite similar.
    But as you see the distance is bigger. Maybe because I am a mixed European.









    I used the Swiss_Italian as a proxy for North Italian ancestry.
    Kind of unrelated, but didn't you say any distance above ~2% is bad?

  9. The Following User Says Thank You to bovefex For This Useful Post:

     Nino90 (02-14-2021)

  10. #17
    Registered Users
    Posts
    2,546
    Sex
    Location
    Sweden
    Ethnicity
    Italo-Germanic
    Nationality
    Swedish
    Y-DNA (P)
    R-L2 / R1b-U152
    mtDNA (M)
    H1a1

    Sweden Italy Italy 1861-1946 Sami Vatican Italy Tuscany
    Quote Originally Posted by bovefex View Post
    Kind of unrelated, but didn't you say any distance above ~2% is bad?
    I sure did. But it depends if you use average or individual samples.

    Average and Ancient samples often give higher distance.

    But I have seen British and Irish members modeling themselves with average and got distance under 2%.

    As I tried to point out, My best guess is that mixed Europeans or people with mixed backgrounds overall will get higher distances.
    Hidden Content


    Target: Nino_scaled
    Distance: 1.6700% / 0.01669968 | R3P
    53.6 Goth_Kowalewko = Germanic
    39.2 Levant_LBN_MA_o6 = South Euro
    7.2 RUS_Khaptsagai_IA = Steppe + Siberian

  11. The Following 2 Users Say Thank You to Nino90 For This Useful Post:

     bovefex (02-14-2021),  JerryS. (02-14-2021)

  12. #18
    Registered Users
    Posts
    2,806
    Sex
    Location
    America
    Ethnicity
    North & Ionian Seas
    Nationality
    American
    Y-DNA (P)
    I1 (P109)

    England Italy Germany Scotland
    regionally mixed can be a harder selection process using individual samples, but so can be the case with different groups from the same region. I am a babe in the woods with this stuff so it took me a while but I was able to sort out mine using selected individuals with expected percentages and the distances were around 2. when including individual samples from similar regions I got even lower. you have to reduce the spread sheet to just what you know and include similar regions. find an individual sample(s) from your regions as shown by running them through the complete spread sheet. once that's done if you are not Russian or Polish or Croatian or American Indian or Japanese or..... remove them from the spread sheet and start whittling things down.

  13. The Following User Says Thank You to JerryS. For This Useful Post:

     bovefex (02-14-2021)

  14. #19
    Registered Users
    Posts
    2,806
    Sex
    Location
    America
    Ethnicity
    North & Ionian Seas
    Nationality
    American
    Y-DNA (P)
    I1 (P109)

    England Italy Germany Scotland
    Quote Originally Posted by firemonkey View Post
    Given that individual samples can be more accurate is there a simple , not overly time consuming,way to choose which individual samples to use?
    do you know what your purported percentages should be? you have Scotland, Ireland and England for flags which will be an incredible amount of overlap. ideally you would want for example 33% showing of each if that is the case for you. start with all groups from that region, then remove the outliers from those groups like Orcadian and Shetland unless your ancestry is actually from there. remove Welsh and Cornwall as well unless you have ancestry from there... its a process and I think in your case would be extremely hard to do in my opinion with those three.

  15. The Following User Says Thank You to JerryS. For This Useful Post:

     bovefex (02-14-2021)

  16. #20
    Gold Class Member
    Posts
    4,729
    Sex
    Location
    Calne,England
    Ethnicity
    British and Irish
    Nationality
    Great Britain
    Y-DNA (P)
    E-Y45878
    mtDNA (M)
    H67

    United Kingdom Scotland England Ireland
    Quote Originally Posted by JerryS. View Post
    do you know what your purported percentages should be? you have Scotland, Ireland and England for flags which will be an incredible amount of overlap. ideally you would want for example 33% showing of each if that is the case for you. start with all groups from that region, then remove the outliers from those groups like Orcadian and Shetland unless your ancestry is actually from there. remove Welsh and Cornwall as well unless you have ancestry from there... its a process and I think in your case would be extremely hard to do in my opinion with those three.
    My known ancestry is English,Scottish and Irish with about 50/31/19% for them respectively . My surname Gatty first appears in Cornwall around 1570 according to the IGI. My 2 Big Y matches have earliest known relatives from Cornwall. One belongs to the same haplogroup at Yfull and is a 0.031 match.

    Using countries mentioned in the paid tests I've done I get the following scaled result via Genoplot

    sample: firemonkey:Ancetrydnafm
    distance: 0.7208
    Irish: 49.5
    Scottish: 26
    Danish: 13
    Dutch: 4
    Norwegian: 4
    German: 3.5


    Adding a couple of ancient populations that I get good amounts for gives the following


    sample: firemonkey:Ancetrydnafm
    distance: 0.6978
    Irish: 42
    English: 21
    Scottish: 11
    VK2020_GreenlandE_VA: 11
    Danish: 8
    VK2020_Faroes_EM: 7
    Please support Mental health research and world community grid

    Hidden Content
    Hidden Content
    Hidden Content
    Hidden Content

Page 2 of 3 FirstFirst 123 LastLast

Similar Threads

  1. Replies: 21
    Last Post: 12-01-2020, 08:05 PM
  2. G25 Eurogenes dataset Averages & Individual samples
    By Hurricane in forum Autosomal (auDNA)
    Replies: 44
    Last Post: 11-24-2020, 11:33 AM
  3. Individual Arain Xing GedMatch Harappa Samples?
    By SeverusGrape in forum Southern
    Replies: 3
    Last Post: 04-09-2020, 03:12 AM
  4. The trouble with individual samples
    By firemonkey in forum Autosomal (auDNA)
    Replies: 0
    Last Post: 07-07-2019, 12:01 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •