Articles by Alistair Leak

Facet wrapping multivariate data: reshape and ggplot

June 2, 2013 | 0 Comments

A common problem when trying to show data is that the attributes that you want to map for comparison are stored in multiple rather than single variables. For example, proportion of employment by type. This practical will achieve tis using … Continue reading → [Read more...]

Logging Data in R Loops: Applied to Twitter.

May 26, 2013 | 0 Comments

A problem that many users face in R is storing the output from loop operations. In the case of Twitter, we may be requesting the last specified number of Tweets from a number of Twitter users. Several methods exist for … Continue reading → [Read more...]

Pivot Tables for R: Try sqldf

May 21, 2013 | 0 Comments

Pivot tables are a a growing staple for analysis in excel yet they remain limited to the functionality which Microsoft has chosen to include. Typical operations are the inclusion of filters, choice over rows, columns, and maths operations. In R … Continue reading → [Read more...]

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