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"markdown": "---\ntitle: \"Compare population age structures of Europe NUTS-3 regions and the US counties using ternary color-coding\"\ndescription-meta: \"{{< meta website.description >}}\"\ndate: \"2018-12-03\"\nimage: teaser.png\ncategories: [r, tricolore, rspatial]\n---\n\n\n***\n\n\n\n\n\nOn 28 November 2018 I presented a poster at [Dutch Demography Day][nvd] in Utrecht. Here it is:\n\n\n::: {.cell .column-screen-inset}\n::: {.cell-output-display}\n![](compare-poster.png){width=1756}\n:::\n:::\n\n\n\n\n\nThe poster compares population age structures, represented as ternary compositions in three broad age groups, of European NUTS-3 regions and the United States counties. I used ternary color-coding, a dataviz approach that [Jonas Schöley][js] and me recently brought to R in [tricolore][tric] package. \n\nIn these maps, each region's population age composition is uniquely color-coded. Colors show direction and magnitude of deviation from the center point, which represents the average age composition. Hue component of a color encodes the direction of deviation: towards yellow – more elderly population (65+); cyan – more people at working ages (15–64); magenta–more kids (<15).\n\nOf course, NUTS-3 regions and the US counties are not perfect to compare; on average, NUTS-3 regions are roughly ten times bigger. That's why the colors for European regions look quite muted, they are closer to the grey average composition.\n\n\nThe poster won [NVD][nvd] Poster Award via online voting of the conference participants.\n\n![](poster-award.png)\n\n***\n\n::: {.callout-tip}\n# Replication \nThis time I layouted the poster in [Inkscape][ink] rather than arranging everything with hundreds of R code lines. But all the elements of the posted are reproducible with code from [this github repo][repo].\n:::\n\n\n::: {.callout-note}\n# See also\n - [Kashnitsky, I., & Schöley, J. (2018). Regional population structures at a glance. _The Lancet_, 392(10143), 209–210.][tl]\n - [My PhD project -- Regional demographic convergence in Europe][proj]\n - [Paper (Schöley & Willekens 2017) with the initial ideas for tricolore package][demres17]\n - [An example of ternary colorcoding used to visualize cause-of-death data][dr18]\n:::\n\n\n[nvd]: http://www.nvdemografie.nl/en/activities/dutch-demography-day/dutch-demography-day-2018\n[js]: https://twitter.com/jschoeley\n[tric]: https://cran.r-project.org/web/packages/tricolore/index.html\n[ink]: https://inkscape.org\n[repo]: https://github.com/ikashnitsky/compare-pop-eu-us\n\n[tl]: https://doi.org/10.1186/s41118-017-0018-2\n[proj]: https://osf.io/d4hjx/\n[demres17]: https://doi.org/10.4054/DemRes.2017.36.21\n[dr18]: https://github.com/ikashnitsky/demres-2018-geofacet\n\n\n", | ||
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