Let's say we gather some data on a group of people. This data will include height, weight and age. So the data may look something like:
We could plot this data on a three dimensional grid, we can also represent each row with a list of three values, for example the first row becomes: [58,1.56,23]. This list is a vector. Vectors can be used to represent all kinds of data including natural language, images and so on.
This blog includes:
Scripts mainly in Python with a few in R covering NLP, Pandas, Matplotlib and others. See the home page for links to some of the scripts. Also includes some explanations of basic data science terminology.