Blog Archives

Zooming in on maps with sf and ggplot2

April 30, 2019
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Zooming in on maps with sf and ggplot2

When working with geo-spatial data in R, I usually use the sf package for manipulating spatial data as Simple Features … Read More →

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Three ways of visualizing a graph on a map

May 31, 2018
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Three ways of visualizing a graph on a map

When visualizing a network with nodes that refer to a geographic place, it is often useful to put these nodes … Read More →

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Visualizing graphs with overlapping node groups

May 11, 2018
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Visualizing graphs with overlapping node groups

I recently came across some data about multilateral agreements, which needed to be visualized as network plots. This data had … Read More →

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Creating a “balloon plot” as alternative to a heat map with ggplot2

January 24, 2017
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Creating a “balloon plot” as alternative to a heat map with ggplot2

Heat maps are great to compare observations with lots of variables (which must be comparable in terms of unit, domain, … Read More →

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Parallel Coordinate Plots for Discrete and Categorical Data in R — A Comparison

September 27, 2016
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Parallel Coordinate Plots for Discrete and Categorical Data in R — A Comparison

Parallel Coordinate Plots are useful to visualize multivariate data. R provides several packages/functions to draw Parallel Coordinate Plots (PCPs): ggparcoord in the package GGally the package ggparallel plain ggplot2 with geom_path In this post I w...

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Dynamic column/variable names with dplyr using Standard Evaluation functions

September 27, 2016
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Data manipulation works like a charm in R when using a library like dplyr. An often overlooked feature of this library is called Standard Evaluation (SE) which is also described in the vignette about the related Non-standard Evaluation. It basically al...

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