Slavic G25 (ancient) calculator

[Lucas]

I forget, your father's coordinates were created using the method that utilizes yours and also your mother's coordinates, right?

Yes, I think by me if I remember well.

[Coastal Elite]

I forget, your father's coordinates were created using the method that utilizes yours and also your mother's coordinates, right?

Yup, Lucas did it using that method. I think someone used that approach for your father if I remember correctly. One of these days I'll get him tested for real.

[Luke35]

Yup, Lucas did it using that method. I think someone used that approach for your father if I remember correctly. One of these days I'll get him tested for real.

Yup, Kaspias made my father's that same way. I think it's the premium method for phasing a parent.

[Lucas]

Yup, Kaspias made my father's that same way. I think it's the premium method for phasing a parent.

The best and also simple if you use spreadsheet. Manually it is quite time consuming (at first I did it that way).

But it is still aproximation. For example my father or mother artificial results have about 70-80% accuracy ( I have their real raw datas for both to compare).

[Luke35]

The best and also simple if you use spreadsheet. Manually it is quite time consuming (at first I did it that way).

But it is still aproximation. For example my father or mother artificial results have about 70-80% accuracy ( I have their real raw datas for both to compare).

What about when parental admixture has less overlap, does accuracy go up? I think I have seen some plots where people who have parents of the same ethnicity (i.e. both Polish) do not plot exactly between them. But people who have 2 different parental admixes, like me and Daco, plot more precisely between them. I could be wrong, I've only seen a few cases including myself.

Gijaxo told me he does in fact plot right between his parents on G25 (but not on Eurogenes), which I find quite interesting.

[Lucas]

What about when parental admixture has less overlap, does accuracy go up? I think I have seen some plots where people who have parents of the same ethnicity (i.e. both Polish) do not plot exactly between them, but people who have 2 parental admixes, like me and Daco, plot more between them. I could be wrong, I've only seen a few cases including myself.

Yes I don't plot between parents, we create a flattened triangle
I think it is true, more distant parental admixtures, more you are exactly between them on PCA.

[Luke35]

Yes I don't plot between parents, we create a flattened triangle
I think it is true, more distant parental admixtures, more you are exactly between them on PCA.

Sorry, I added this comment to my above post after you responded:


Gijaxo told me he does in fact plot right between his parents on G25 (but not on Eurogenes), which I find quite interesting.

Any idea why it works for him on G25 but not GEDmatch?

[Lucas]

Sorry, I added this comment to my above post after you responded:


Gijaxo told me he does in fact plot right between his parents on G25 (but not on Eurogenes), which I find quite interesting.

Any idea why it works for him on G25 but not GEDmatch?

If this Gedmatch calc is from Eurogenes also?

[Luke35]

If this Gedmatch calc is from Eurogenes also?

I believe so.

I have used a simplistic method of phasing my father on Eurogenes, and you and I used it for K36, where we assumed I plot halfway between my parents on each component, creating a basic kit from that. Well, I was showing that in a thread and gixajo made the statement that he plots exactly between his parents on G25, but not GEDmatch. I assume he meant Eurogenes as that was what I was talking about. In fact, I'm just guessing, but he may have been referencing that old K15 PCA.

[Lucas]

I believe so.

I have used a simplistic method of phasing my father on Eurogenes, and you and I used it for K36, where we assumed I plot halfway between my parents on each component, creating a basic kit from that. Well, I was showing that in a thread and gixajo made the statement that he plots exactly between his parents on G25, but not GEDmatch. I assume he meant Eurogenes as that was what I was talking about. In fact, I'm just guessing, but he may have been referencing that old K15 PCA.

If it is K15 PCA from Tolan it is not the same PCA you can create in PAST for example (Tolan has his own method which I can't understand). So he could have different position here and there.