I am plotting a categorical dataset and want to use distinctive colors to represent different categories. Given a number n, how can I get n number of MOST distinctive colors in R? Thanks.

I am sorry I cannot offer an image because of limited reputation I have on this site... I used the following code to generate my line chart in R: p <- ggplot()+ geom_line(data=data, aes(x, y, ...

I am trying to set up a global ggplot2 color scheme in my global RMarkdown files and I had success with viridis with the following code options( ggplot2.continuous.colour = "viridis", g...

I am attempting to make a map of global data anomaly (precip, temp etc) and need to use a diverging color palette. I have code that runs well with scale_color_viridis but it does not easily convert...

I am wondering, how is it possible to get the HEX # for brewer color palettes? https://learnr.wordpress.com/2009/04/15/ggplot2-qualitative-colour-palettes/

I have ordered categorical data that I would like to use color brewer on. But I have a hard time seeing the very light lower values. Is there a way to either trim off those lower values or set the ...

library(tidyverse) library(RColorBrewer) mtcars %>% count(cyl) %>% ungroup() %>% ggplot(aes(cyl, n)) + geom_line(size = 3) + scale_color_brewer(palette = "Accent") I'll often h...

I would like to plot 1950 world population in density map with tmap package. And I break the population data into 22 categories manually, and fill with different color for each category. My code is...

I am trying to create horizontal bar plot and would like to fill the individual bar as per their log fold values, white for lowest value and darkest for highest value. However, I am not able to do ...

I'm making a scatterplot of 2 continuous variables and a 4-level factor in R, using ggplot2. The 4-level factor column has some NAs in it. p1 <- qplot(x_var, y_var, color=4_factor, data=df) p1 ...

I want to have a polygon type of spatial plots using ggplot. In which, polygons are plotted and color of polygons are decided by its weight. Sample data frame look like - (here is the data file C...

how can I see what colors ggplot2 is using for discrete categories using a given palette, like "Set1" or "Set2" for brewer? i.e. for a given set of categories what the colors that will be used are?...

sorry if i'm missing something fundamental about how colorRampPalette and brewer.pal work, but how can you create a qualitative color gradient based on multiple variables? my goal is to create a mu...

I'm plotting maps using contourf and I'd usually go with the default (rainbow) colorscheme with levels = 50. #Various imports #LOTS OF OTHER CODE BEFORE plot = plt.contourf(to_plot, 50) plt.show(...

Quite often I use a diverging colour palette mapped to a parameter that has an interesting turning point somewhere near the middle. Unfortunately, available diverging palettes -- e.g. those from ...

I want to use scale_colour_brewer() and scale_fill_brewer() to specify the fill or colours via the brewer palette: diagram <- diagram + scale_colour_brewer() + scale_fill_brewer() Nevertheles...

I'm using ggplot2 to create quite a few facet_wrapped geom_line plot. Although each plot only has a maximum of eight lines, when taken together, there are more like twenty categories to show on th...

I have data as follows: 10 states Each state has two types Each type has between 1 and 29 entities Each state-entity-type has a count Complete data available as a gist. I'm trying to visualiz...

I have a R dataframe (df), which I am plotting as a bar graph in ggplot2 and coloring based on a column in the dataframe (df$type). Right now, I am using the default coloring pattern (scale_fill_br...