Infographics. I’ve seen good examples. I’ve seen more bad examples. In general, I prefer a good chart to an infographic. That said, there’s a “genre” of infographic that I do think is useful, which I’ll call “if X were 100 Y”. A good example: if the world ...

Post from Pablo Bernabeu’s blog. Principal Component Analysis (PCA) is a technique used to find the core components that underlie different variables. It comes in very useful whenever doubts arise about the true origin of three or more variables. There are two main methods for performing a PCA: naive ...

Part of 3 in the series Random Number GenerationCombined linear congruential generators, as the name implies, are a type of PRNG (pseudorandom number generator) that combine two or more LCGs (linear congruential generators). The combination of two or more LCGs into one random number generator can result in a marked... The ...

We're down to single digits for the 2017 EARL London! Next Tuesday's workshops only have limited places left, so if you had plans to attend, make sure you book now. For ...

Data Visualization for Social Science: A Practical Introduction with R and ggplot2 I’m writing a book on data visualization, provisionally titled Data Visualization for Social Science: A practical introduction with R and ggplot2. As part of that process, largely because I’ve benefited so much myself from the availability ...

Classification is a supervised machine learning technique in which the dataset which we are analyzing has some inputs \(X_i\) and a response variable \(Y\) which is a discrete valued variable.Discrete valued means the variable has a finite set of values.In more specific terms in classification the response ...

What and why If there could only be one file format to save your charts in, it should be SVG. … More

The netCDF format is popular in sciences that analyse sequential spatial data. It is a self-describing, machine-independent data format for creating, accessing and sharing array-oriented information. The netCDF format provides spatial time-series such as meteorological or environmental data. This article shows how to visualise … Continue reading → The post Analysing soil ...

The netCDF format is popular in sciences that analyse sequential spatial data. It is a self-describing, machine-independent data format for creating, accessing and sharing array-oriented information. The netCDF format provides spatial time-series such as meteorological or environmental data. This article shows how to visualise … Continue reading → The post Analysing soil ...