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Y axis scale

Open Paul-Reed opened this issue 8 years ago • 2 comments

Noticed that the uppermost value in the scale is always missing. For example, in the screenshot below, the peak graph value is 3216W, yet the y-axis scale stops at 2000W instead of 3000W. The mean average of the feed value between 14:33 & 14:44 was 3080W.

scale

Also apparent with @glynhudson screenprint;

glyn

What is the peak value??

Paul-Reed avatar Apr 22 '17 19:04 Paul-Reed

Just noticed this. Related: Y axis should have enabled as an option, lines on the background so the graph is more readable. I simple can't know the low, night time energy usage through this app, because I can't match up the graphing to an actual value :/

danbates2 avatar Aug 11 '19 07:08 danbates2

A more significant defect with the y axis, from an data visualisation good practice point of view, is the way 0 is not at the bottom. The filled area beneath the curve absolutely should not extend to negative values, as it does now. It should be easy to see, for example, that a period of 400W consumption next to a 200W period is twice as high; there should be a proportionality between the visual height and the power consumption for optimal interpretability. I contend this is really a defect, not an enhancement.

arc12 avatar Jan 17 '22 10:01 arc12