The date range slider draws misleading bars

[jacobthill]

The bars the date range slider draws are misleading and, it seems, inaccurate.

The example below shows a narrow but very tall bar to the far right indicating that the largest number of records have dates between 2000 and 2020. The following images show that other ranges have far more records.

Changing the range brings the far right bar (2000-2020) down but it is still the same size as the bar to the left (1950-1999) even though the left bar has 2.5 times the number of records.

The image below shows the same problem, this time the bar on the left (1000-1999) has even more records but appears significantly smaller.

The bars representing ranges from -10,000 to 0 are so small they don't even register visually, leading users to think there are no records for these times.

To do:

• check for bugs in the code that draws the bars.
• consider plotting the logarithm of the number of records so that larger numbers don't completely obscure smaller ones.