Round System floats to RATIO_DP = 4 .
Round System floats to RATIO_DP = 4 .

This gives 4 dp, or 2 dp if considered as a percentage. This is probably
detailed enough. If not, metrics can be adjusted in batches or even
individually. Only floats should be rounded, however; never bytes, etc.

tiredpixel/pikka-bird-collector-py