R visualization workshop

April 29, 2023

R visualization workshop

Looking for:

- Scale_fill_manual

Scale_fill_manual. Why scale_fill_manual does not fill the bar with colors created by using ggplot2 in R?

Colors (ggplot2)

Hi, the code you are showing is missing the 'fill' argument within 'aes' of either the ggplot- or geom-call. See the examples in your link. The functions scale_colour_manual(), scale_fill_manual(), scale_size_manual(), etc. work on the aesthetics specified in the scale name: colour. Change colors manually. A custom color palettes can be specified using the functions: scale_fill_manual() for box plot, bar plot, violin plot, etc.

Scale_fill_manual -

I am trying to create a scatterplot that is summarized by hexagon bins of counts. I would like the user to be able to define the count breaks for the color scale.

Oddly, however, it only works sometimes. My goal is to tweak this code so that the plot does not have problems where suddenly certain hexagons are different sizes and shapes than the rest regardless of the value assigned to xbins. However, I am puzzled what may be causing this problem for certain xbins values. Any advice would be greatly appreciated.

I am updating the example code after taking into account comments by bdemarest and Axeman. As a result, I am still unable to get this goal to work.

Thank you. Stack Overflow for Teams — Start collaborating and sharing organizational knowledge. Create a free Team Why Teams? Learn more about Collectives. If you want to remove missing values from a discrete scale, specify na. If na. Does not apply to position scales where NA is always placed at the far right. A palette function that when called with a single integer argument the number of levels in the scale returns the values that they should take.

This is how:. This is not entirely satisfying, mostly because the scales have quite a bit of perceptive overlap I think. Playing around with different scales can definitely gives us a better result:. Still not great in my opinion using multiple color scales is confusing to me , but a lot more tolerable. It looks like ggnewscale was recently developed to allow for multiple scales in a single plot-- particularly color and fill scales.

Stack Overflow for Teams — Start collaborating and sharing organizational knowledge. Create a free Team Why Teams? Learn more about Collectives. Learn more about Teams. Asked 5 years, 11 months ago. Modified 1 year, 7 months ago. Viewed 7k times. Improve this question.

You can only have one fill scale per plot. Thanks Roland, I understand that, and that's the barrier I'm bouncing up against. Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. I'm struggling with how to manually change bar colours in ggplot2. But when creating a simpler chart that doesn't require a legend, I can't seem to get it to work.

Below is a sample data frame, the steps I used in dplyr to get the percentages, and how I think it should work in ggplot2. I just want to manually change the bar colours to red, seagreen3, and grey. Any help would be appreciated. I'm also curious to know different ways that are used to quickly calculate percentages.

I've been using piping with dplyr , but if would be great to see other ways of writing code. Stack Overflow for Teams — Start collaborating and sharing organizational knowledge.

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