Simulate Datasets with DrawData.xyz

Vincent Warmerdam shared his new tool to quickly simulate artificial datasets: http://www.drawdata.xyz. The drawdata.xyz tool allows you to easily create your own line- and scatter-plot with different groups of datapoints following specific x-y patterns. After drawing your data, you can just click to export your new dataset to csv or json format. x y 106.04…

Debuggex: A regular expression testing tool

I came across this awesome regular expression tool I wanted to share. Debuggex allows you to interactively write, test and visually inspect what your regular expressions match in either Python, JavaScript, or Perl. Read more about regular expressions here, for instance their implementation in R.

Google Facets: Interactive Visualization for Everybody

Last week, Google released Facets, their new, open source visualization tool. Facets consists of two interfaces that allow users to investigate their data at different levels. Facets Overview provides users with a quick understanding of the distribution of values across the variables in their dataset. Overview is especially helpful in detecting unexpected values, missing values, unbalanced…