Small plots on a plot: R

Pie charts instead of points or bubbles in x-y/scatter-plot/bubble plot: Uncle google found this for me:

http://blog.revolutionanalytics.com/2012/09/visualize-complex-data-with-subplots.html
http://www.r-bloggers.com/embeding-a-subplot-in-ggplot-via-subview/
http://vita.had.co.nz/papers/embedded-plots.pdf

ggsubplot

http://stackoverflow.com/questions/26577669/tiny-pie-charts-to-represent-each-point-in-an-scatterplot-using-ggplot2
http://stackoverflow.com/questions/7714677/r-scatterplot-with-too-many-points/16122003#16122003



pieGlyph
http://stackoverflow.com/questions/20465070/barplots-on-a-map/20468836#20468836

Maybe it will be possible in ggvis??
http://ggvis.rstudio.com/ggvis-basics.html


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Here a solution without ggplot (p.11):
https://www.r-project.org/doc/Rnews/Rnews_2003-2.pdf

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plotrix and floating.pie?
http://ask.programmershare.com/2269_10385068/

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http://gis.stackexchange.com/questions/4568/effectively-displaying-demographic-data-on-a-printed-map

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ggtree
http://stackoverflow.com/questions/10368180/plotting-pie-graphs-on-map-in-ggplot

mapplots
http://www.molecularecologist.com/2012/09/making-maps-with-r/


Rozwiazanie w Excelu:
http://www.andypope.info/charts/piedatamarkers.htm