I have recently done an AncestryDNA test. I feel a little confused about it ever since I put my raw dna data in GEDmatch.

The results I got from GEDmatch seem to differ a lot from my Ancestry results. I am quite impressed with GEDmatch as I have had a few people contact me already and we have seemed to have found a link when comparing family trees.

I was wondering if anyone could break this down for me or maybe simplify it. If so I would be hugely greatful!

These are my AncestryDNA results....

Africa - 1%
Africa North - 1%
Europe 99%
Great Britain - 58%
Europe West - 39%
Italy/Greece - 1%
Iberian Peninsula - 1%


These are my GEDmatch K13

Admix Results (sorted):

# Population Percent
1 North_Atlantic 46.29
2 Baltic 25.03
3 West_Med 13.94
4 East_Med 8.03
5 West_Asian 4.72


Finished reading population data. 204 populations found.
13 components mode.

--------------------------------

Least-squares method.

Using 1 population approximation:
1 South_Dutch @ 4.371546
2 West_German @ 4.833518
3 Southeast_English @ 5.516789
4 North_German @ 6.408624
5 Danish @ 7.173024
6 North_Dutch @ 7.318861
7 Orcadian @ 7.703867
8 Southwest_English @ 8.504626
9 Irish @ 9.261957
10 Norwegian @ 9.679606
11 West_Scottish @ 9.721066
12 Swedish @ 10.507414
13 French @ 10.679226
14 Austrian @ 10.725137
15 East_German @ 11.744035
16 North_Swedish @ 15.268956
17 Hungarian @ 15.884724
18 Spanish_Cataluna @ 19.048798
19 Spanish_Castilla_Y_Leon @ 20.440933
20 Spanish_Galicia @ 20.545338

Using 2 populations approximation:
1 50% Southeast_English +50% West_German @ 2.875214


Using 3 populations approximation:
1 50% Danish +25% North_Italian +25% Swedish @ 2.522649


Using 4 populations approximation:
++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++
1 Hungarian + Southeast_English + Southeast_English + Southeast_English @ 1.898774
2 Austrian + Southeast_English + Southeast_English + West_German @ 2.156923
3 Austrian + South_Dutch + Southeast_English + Southeast_English @ 2.249182
4 Serbian + Southeast_English + Southeast_English + Southeast_English @ 2.307496
5 Orcadian + Serbian + Southeast_English + Southeast_English @ 2.313421
6 Serbian + Southeast_English + Southeast_English + West_Scottish @ 2.321306
7 East_German + Southeast_English + Southeast_English + West_German @ 2.329878
8 Danish + North_Italian + Norwegian + Norwegian @ 2.373696
9 Danish + North_Italian + Norwegian + Swedish @ 2.412282
10 Hungarian + South_Dutch + Southeast_English + Southeast_English @ 2.421309
11 North_Italian + Norwegian + Southeast_English + Swedish @ 2.441484
12 Hungarian + Southeast_English + Southeast_English + Southwest_English @ 2.451551
13 East_German + South_Dutch + Southeast_English + Southeast_English @ 2.467706
14 Austrian + French + Norwegian + Southeast_English @ 2.472159
15 North_Dutch + Serbian + Southeast_English + Southeast_English @ 2.474162
16 Irish + Serbian + Southeast_English + Southeast_English @ 2.489389
17 North_Italian + Norwegian + Norwegian + Norwegian @ 2.501072
18 Austrian + Southeast_English + Southeast_English + Southeast_English @ 2.504290
19 North_Dutch + North_Italian + Norwegian + Norwegian @ 2.507733
20 North_Dutch + North_Italian + Norwegian + Swedish @ 2.509863


I'm mostly confused about the population approximations and what they mean and also about the Mediterranean and West Asian result.

Many thanks to anyone who replies!