This report documents the process of debugging a problem with the recording and replaying of R plots from one R session to another. The purpose of this report is to record the source of the problem, to record the solution … Continue reading → [Read more...]

In the development version of R (to be R 3.3.0), it is possible again to save the result of recordPlot() from one R session and then load it and replay it, with replayPlot(), in a different R session. This recording … Continue reading → [Read more...]

The ‘safemode’ package provides a safemode() function that creates a “safe mode” session in R. In “safe mode”, all symbols have an “age” (a last-modified time stamp) and a set of dependent symbols, and a warning is issued whenever a … Continue reading → [Read more...]

This document describes several different techniques for including SVG images within a web page and points out the important SVG attributes that control the final appearance of the SVG image within the web page. The document then describes how to … Continue reading → [Read more...]

The National Climate Database contains data collected from around 6,500 weather stations throughout New Zealand, providing a necessary repository for any study involving New Zealand’s weather or climate. Although data from this database can be accessed via a web portal … Continue reading → [Read more...]

The gridGraphics package provides a function, grid.echo(), that can be used to convert a plot drawn with the graphics package to the same result drawn using grid. This provides access to a variety of grid tools for making customisations and … Continue reading → [Read more...]

Reproducible documents provide an efficient way to produce reports by automatically generating content from code chunks within the report. The processing of a source document, that contains code chunks, to a final document, that contains automatically-generated content, is typically one … Continue reading → [Read more...]