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Posted to commits@echarts.apache.org by GitBox <gi...@apache.org> on 2021/08/23 18:48:18 UTC
[GitHub] [echarts] NiantongDong commented on issue #15558: Display negative value in Logarithmic axis
NiantongDong commented on issue #15558:
URL: https://github.com/apache/echarts/issues/15558#issuecomment-904022244
What I want to do is to use the log1p y-axis to represent the certain stock return rate. The rate may be negative and keep going down. If I use type 'log' in echarts, it will not show any value less than 0. If I use type 'value', the graph is incorrect. The idea is that the rate is calculated by Math.log1p(x) and the y-axis value should also be calculated Math.exp(y) so that it can show the correct plot for each value. Here is an example graph I generated using Juptyer and matplotlib.
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