Slavic G25 (ancient) calculator

Quote:

---

Originally Posted by Mr.G

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.

Quote:

---

Originally Posted by Mr.G

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.

Quote:

---

Originally Posted by Daco Celtic

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.

Quote:

---

Originally Posted by Mr.G

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).

Quote:

---

Originally Posted by Lucas

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.

Quote:

---

Originally Posted by Mr.G

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.

Quote:

---

Originally Posted by Lucas

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?

Quote:

---

Originally Posted by Mr.G

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?

Quote:

---

Originally Posted by Lucas

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.

Quote:

---

Originally Posted by Mr.G

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.