Closed HedvigS closed 5 years ago
While I agree that the color schemes could be more tuned to the different variables, I think in this case a sequential rather than diverging color scheme is the right choice.
They are tuned to categorical vs non-categorical already. The categorical are much easier to read.
There are better qualitative/sequential options than the current ones for non-categorical. Like this one: http://colorbrewer2.org/#type=sequential&scheme=YlGnBu&n=9
Judging by the amount of research that has been done on this topic, this is not an area where a simple "this one is better" will convince everybody. For the upcoming rewrite of D-PLACE we will probably go with some of the color schemes by Paul Tol, extended with other published schemes, to allow for qualitative schemes for arbitrary numbers of categories.
I'm not saying that that color scheme is necessarily the best, I'm saying that the current color scheme is hard to use and that a change would be appreciated. I gave an example to say that there are better options, not to say that you need to pick exactly that one.
I'm glad to hear that there will be new color schemes in the rewrite, that's all I wanted to hear really Robert :)
Can the default color scale on non-categorical variables be changed on the web application for maps? It would be great if they had 3 nuances instead of 2, it's hard to tell the middle values apart.