Implement downsampling in dimension reduction plots

Goal / Use case

The goal is to speed up loading and display of the dimension reduction and gene view pages.

Tasks / Implementation

• Implement a downsampling approach: The creator of the page can set a percentage of samples to be shown. These samples will be drawn randomly, other samples will be discarded.
• Check how severe a downsampling approach distorts the statistics from linked charts. Do the gains in speed enhance the user experience drastically? Decide if it is worth to omit a certain number of samples for a speed-gain!
• Check if downsampling can be implemented for viewing only, but statistics and download are still full data sets. How is the speed-up now?