this post was submitted on 03 Dec 2025
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Maps without New Zealand

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Maps without New Zealand on them.

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Dave@lemmy.nz
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How common are men-women friendships on Facebook? (lemmy.nz)
submitted 3 weeks ago by absGeekNZ@lemmy.nz to c/mapswithoutnz@lemmy.nz
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[โ€“] absGeekNZ@lemmy.nz 3 points 3 weeks ago (1 children)

Hey this is an info graphic, not actual data to make informed decisions on....

But I assume that the middle of the scale is equally likely (50/50 same sex, mixed sex); and the ends are heavily skewed at like (90/10).

[โ€“] Dave@lemmy.nz 2 points 3 weeks ago* (last edited 3 weeks ago)

The referenced paper isn't on SciHub, but I found bits and pieces of it. E.g. here is a description of the ranking:

In places where men and women form equal shares of their ties with women, the value of the CGFR is 1.

Just before that section (right hand side of first page) there is a desription of how they calculate it.

This page has many other countries not in the above graph, but it seems is only the appendices not the actual paper. There are versions for the top 10, 25, or 200 friends.

There are hundreds of graphs in there using different scales, but this one uses their CGFR scale (top 200 friends): map of Australia and New Zealand with coloured regions showing light greens and pale reds, reasonably uniform except for a block in mid-western Australia that shows a darker blue colour roughly aligned with 0.75 on the 0 to 1 scale, and another section towards the western coast, representing a higher proportion of men/woman friendships on facebook for these sections. The rest of Australia and New Zealand are relatively consistent around the 0.4 to 0.6 range

But anyway, it seems dark blue is roughly equal male/female to same gender friendships. The graphs I link are very similar to the one you posted, but I do notice the blue end is darker in yours. For example, the Africa map has the South Africa end at about 0.6 or 0.7:

map of Africa showing red at the top (in the 0.1 to 0.2 range, gradually changing to a green/blue colour at the bottom, perhaps around the 0.65 to 0.75 range)

It's like someone took the map but made the scale slightly different, or perhaps that happened when loading data into that "india in pixels" map site that is referenced on your image.

So it seems that everywhere in the world, same sex friendships are more common. It's worth noting they used an algorithm to rank people's friendship strength then took the top X friends (it appears the OP image is top 200).