davidbau / covid-19-chart

Chart of current COVID-19 time series data. Enables a variety of county- state- and nation-level comparisons and data exploration.
https://covid19chart.org/
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Advanced option to normalize log >=100 plots by first day #20

Closed davidbau closed 4 years ago

davidbau commented 4 years ago

Idea from Alan Warren.

Add an (advanced) mode so that the log >=100 plot can normalize all series so the first day is 1.0.

Currently whatever threshold >=80, >=100 etc you choose, the first day has a large artificial vertical offset since the daily growth rates are so high. E.g., first day in Michigan >= 100 is already 334, so the whole Michigan line floats over the others, even with a similar slope.

One solution is to normalize everything by that day, i.e., report "Total cumulative cases (log scale, normalized to first day)." This should be an option, at least in advanced mode.

davidbau commented 4 years ago

Fixed.