Contents

Python Exercise

OASIS Data

You will be working with the oasis longitudinal dataset (OASIS 2). This is a free, open access dataset consisting of longitudinal MRI data in nondemented and demented older adults.

We’ll be downloading the data from http://www.oasis-brains.org/pdf/oasis_longitudinal.csv.

For those interested, a full explanation of the data can be found in:

Open Access Series of Imaging Studies (OASIS): Longitudinal MRI Data in Nondemented and Demented Older Adults. Marcus, DS, Fotenos, AF, Csernansky, JG, Morris, JC, Buckner, RL, 2010. Journal of Cognitive Neuroscience, 22, 2677-2684. doi: 10.1162/jocn.2009.21407

Reproduce and extend an analysis.

A small piece of exploratory analysis was done on the oasis dataset. While it was done in colab only the html document is available. You want to reproduce and update this analysis.

  1. View the html report by right clicking on Python Worksheet in the left hand menu, opening the link in a new tab.

  2. Create a fresh colab notebook and reproduce the given report. You’ll need to look at the cheat-sheet and you can copy and paste chunks of code if you wish.

Results Table

  1. Either using some of the analysis above, or through additional analysis of your own, create a summary results table below. What it includes is up to you, the overall aim is to get familiar with creating tables in markdown.

  2. Export your notebook to a PDF. How does the front matter change?

Literate programming, Markdown & Colab Python Worksheet