Blog Archives

2018-07 Echoes of the Future

July 19, 2018
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This report discusses ways to combine graphics output from the ‘graphics’ package and the ‘grid’ package in R and introduces a new function echoGrob in ...

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2018-06 Rasterizing Chromatograms

June 12, 2018
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This report describes an application of the ‘rasterize’ package for R. We rasterize (just) the line segments of two chromatograms in order to render one ...

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2018-05 Selective Raster Graphics

May 24, 2018
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This report explores ways to render specific components of an R plot in raster format, when the overall format of the plot is vector. For ...

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2018-04 Extreme Makeover: R Graphics Edition

April 29, 2018
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This report describes a complex R graphics customisation example using functions from the ‘grid’ and ‘gridGraphics’ packages and introduces two new functions in ‘grid’: deviceLoc ...

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2018-03 Putting the Macron in M?ori: Accented text in R Graphics

February 28, 2018
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This report describes different methods for correctly rendering macrons in M?ori text within R plots. The topics covered will also have relevance to rendering other special characters in R graphics and possibly to rendering macrons in other software. ...

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2018-02 An ISCC-NBS Colour List for roloc

February 7, 2018
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This report describes the development of a colour list and colour metric for the roloc package that is based on the ISCC-NBS System of Color Designation. Paul Murrell Download

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2018-01 Generating Colour Names: The roloc Package for R

January 24, 2018
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This report introduces the roloc package for R, which provides functions for converting colour specifications into colour names. Paul Murrell Download

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2017-04 Speeding up gridSVG

October 29, 2017
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This report describes changes in version 1.6-0 of the gridSVG package for R. The most important result of these changes is that gridSVG is now much faster at generating SVG files (in situations where it used to be painfully slow). Paul Murrell Download

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2017-01 Variable-width lines in R

May 18, 2017
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This document describes the vwline package, which provides an R interface for drawing variable-width curves. The package provides functions to draw line segments through a set of locations, or a smooth curve relative to a set of control points, with the width of the line allowed to vary along the length of the line. Paul Continue reading 2017-01...

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2016-15 Automating R Demonstration Videos

December 7, 2016
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This document describes a proof-of-concept for producing R demonstration videos in a fully-automated manner. The script for the video consists of a text file containing code chunks paired with text commentary. The video is produced by running the code while recording a screen capture, using text-to-speech software to record audio of the commentary, then combining Continue reading 2016-15...

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