I wrote this code for a project that didn’t work out but I thought I’d share. It takes the dendrogram produced by hclust in R and converts it into json to be used in a D3 force directed graph (slicing the dendrogram near the top to create a ... [Read more...]

I wanted a way of understanding how a clustering solution will change as more data points are added to the dataset on which it is built. To explain this a bit more, let's say you've built a segmentation on customers, or products, or tweets (something t... [Read more...]

I’ve been using a lot of javascript charting and visualisation libraries recently (e.g. D3, highcharts) and found that it is quite painful to get my data into the JSON structure required by each library. Since I’m doing most of the data manipulation in R anyway it makes ... [Read more...]