NathanW2/qgsexpressionsplus — pull request #2 by nyalldawson (2014-01-01 22:37:46+00:00)
Title: Add functions for generating quasi-random low-discrepancy numbers

Good for semi-random data defined colouring, when you don't want the values to change with every map redraw. Instead you can use the quasi_rand function from the row $id and you'll get semi-random values which vary between features but are always the same for each individual feature.

Also includes a day of week function I forgot about months ago.