## Blog has Moved!!

My site will remain here but my blog has migrated to the address below: http://psychwire.wordpress.com/ Thanks!

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# Category: Blog

## Blog has Moved!!

## Charting the Defeat of AV using R (and some ggplot2 and merge operations on top)

## Is R an ideal language to teach the fundamentals of programming to researchers with no experience in programming?

## Loops, Conditionals and Variables: A Basic Simulation in R

## Data Aggregation in R: plyr, sqldf and data.table

## Further Adventures in Visualisation with ggplot2

## Sexy, Geeky Graphs using ggplot2 in R

## Aggregate Function in R: Making your life easier, one mean at a time

## RStudio, Revolution Analytics and Deducer: A Tale of Three GUIs

## Pivot Tables and Medians in R

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Hayward Godwin's website

Hayward’s Blog Posts

My site will remain here but my blog has migrated to the address below: http://psychwire.wordpress.com/ Thanks!

In this post, I’ll be graphing some results from a recent referendum held here in the UK and combining it with the results of a set of local elections that were held at the same time. I’ll give some examples Continue Reading

UPDATE: I’ve modified the title of this post a bit to clarify what I was really thinking when I wrote it. What I was really thinking was which programming language to choose to teach some fellow researchers how to get Continue Reading

In this post, I’m going to go over some basics of using conditionals and loops in R. I’ll expand on the example I use here in future posts. The conditionals and loops will be used to create some dummy eye Continue Reading

I’ve previously put up a couple of posts about aggregating data in R. In this post, I’m going to be trying some other alternative methods for aggregating the dataset. Before I begin, I’d like to thank Matthew Dowle for highlighting these to Continue Reading

So I previously took a look at some data of player performance from a computer game. In this post, I’m going to do some further visualisations using ggplot2. The data consists of different types of player character, different roles for Continue Reading

So I’ve been looking for some data to play with while learning R, other than the data I’m analysing for various experiments and papers I’m working on. I thought to myself, “Hey, this R stuff is pretty geeky. Can I Continue Reading

I previously posted about calculating medians using R. I used tapply to do it, but I’ve since found something that feels easier to use (at least to me). aggregated_output = aggregate(DV ~ IV1 * IV2, data=data_to_aggregate, FUN=median) aggregated_output The above Continue Reading

I’m in the process of moving from SPSS to R at the moment. It’s not been the easiest of rides, but then learning how to do a core part of your job never really should be. It’s been fun, though Continue Reading

Pivot Tables are a useful way of aggregating data into the format that you’re after. In this example, I’m going to be using R to pivot some data and calculate medians for me. This is useful because Excel can calculate Continue Reading