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We do some basic math in superset to align the ticks on both sides. Are you saying the visualization shown is wrong or that it doesn't match your expectations of how axis/range should be set?

We do some basic math in superset to align the ticks on both sides. Are you saying the visualization shown is wrong or that it doesn't match your expectations of how axis/range should be set?

I would say that it is wrong because the "index" is just a rebase number of "price", so the lines should be totally overlapped.
My expectation is the two axis scale should be aligned. For example, as showing in the 2nd graph above, when I point to the green data point at "21/11/2018", the price showing in tooltip is 11.3K, but it does not align to the price (left) axis, which is at ~11.2K. It is misleading.

And if in case there are two sets of data, one is not a rebase of another, you want to compare the trend/pattern of them, the chart cannot present it accuratley because the scales are not aligned. And there is no function for us to change the scale settings of both axis.

Thanks for reporting, we will investigate this issue next week and let you know.