In graph builder, the default min/center/max values for the default three color gradient only work well for normal data. To help this work for other data:
- Change the default values to the 2.5, 50, and 97.5 percentiles to increase the likelihood of a useful graph by default.
- Introduce a histogram with sliding bars (similar to a local data filter) which would allow the user to move those values around visually.
The default settings for this chart:
![ih_0-1598905615583.png ih_0-1598905615583.png](https://community.jmp.com/t5/image/serverpage/image-id/26529i3B086A9FBE950940/image-size/medium?v=v2&px=400)
would become:
![ih_1-1598905677973.png ih_1-1598905677973.png](https://community.jmp.com/t5/image/serverpage/image-id/26530i8D1EC108F25020E3/image-size/medium?v=v2&px=400)
Instead of the user just seeing this:
![ih_3-1598905863187.png ih_3-1598905863187.png](https://community.jmp.com/t5/image/serverpage/image-id/26532i1C1ADB9C48391FAF/image-size/medium?v=v2&px=400)
they would have a chart like this to further adjust the Minimum, Center, and Maximum settings:
![ih_2-1598905755516.png ih_2-1598905755516.png](https://community.jmp.com/t5/image/serverpage/image-id/26531iF5B41D959FC6BD27/image-size/medium?v=v2&px=400)