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How can I make the legend horizontal in the euler plot in R?

stackoverflow.com › questions › 65067981 › how-can-i-make-the-legend-horizontal-in-the-euler-plot-in-r

The plot method for euler objects uses grid::grid.legend() to plot the legend. You can specify any of grid.legend's arguments in the legend argument to plot (which really calls plot.euler). To get a horizontal legend, use

Copyplot(fit1,
     quantities = TRUE,
     fills = list(fill = col, alpha = 0.8),
     edges = "black",
     main = list(label = "test", cex = 0.9),
     legend = list(side = "bottom", nrow = 1, ncol = 3))

Answer from user2554330 on Stack Overflow

CRAN

cran.r-project.org › web › packages › eulerr › vignettes › introduction.html

Introducing eulerr

April 20, 2026 - # Switch to squares for the same set combination, customizing borders, # labels, and quantities. The `shape` argument also accepts `"ellipse"` # and `"rectangle"`. plot( euler(mat, shape = "square"), quantities = TRUE, fill = "transparent", lty = 1:3, labels = list(font = 4) )

Jolars

jolars.github.io › eulerr › reference › plot.euler.html

Plot Euler and Venn diagrams — plot.euler • eulerr

Defaults for these values, as well ... using eulerr_options(). If the diagram has been fit using the data.frame or matrix methods and using the by argument, the plot area will be split into panels for each combination of the one to two factors. For users who are looking to plot their diagram using another package, all the necessary parameters can be collected if the result of this function ...

CRAN

cran.r-project.org › web › packages › eulerr › vignettes › gallery.html

A Gallery of Euler and Venn Diagrams

wilkinson <- euler( c( A = 4, B = 6, C = 3, D = 2, E = 7, F = 3, "A&B" = 2, "A&F" = 2, "B&C" = 2, "B&D" = 1, "B&F" = 2, "C&D" = 1, "D&E" = 1, "E&F" = 1, "A&B&F" = 1, "B&C&D" = 1 ), shape = "ellipse" ) plot( wilkinson, labels = list(fontfamily = "serif"), edges = list(lty = 3), quantities = list(type = "percent", font = 3) )

RDocumentation

rdocumentation.org › packages › eulerr › versions › 1.1.0 › topics › plot.euler

plot.euler function - RDocumentation

fit <- euler(c("A" = 10, "B" = 5, "A&B" = 3)) plot(fit, fill_opacity = 0.7) # Change to italic roman font, remove borders and switch colors plot(fit, fill = c("dodgerblue4", "darkgoldenrod1"), lwd = 0, fontface = "italic") # Add counts to the plot plot(fit, counts = TRUE) # Add a custom legend and retain counts plot(fit, counts = TRUE, key = list(space = "bottom", columns = 2)) # Plot without fills and distinguish sets with border types instead plot(fit, lty = c("solid", "dotted"), fill = "transparent", cex = 2, fontface = 2, labels = c("foo", "bar")) # Plot a grid of euler plots dat <- data.f

CRAN

cran.r-project.org › web › packages › eulerr › eulerr.pdf pdf

Area-Proportional Euler and Venn Diagrams with Ellipses

May 8, 2026 - A plot is drawn on the current device using grid::Grid() graphics. ... This function is responsible for printing fits from euler() and provides a summary of the fit.

Rdrr.io

rdrr.io › cran › eulerr › man › plot.euler.html

plot.euler: Plot Euler and Venn diagrams in eulerr: Area-Proportional Euler and Venn Diagrams with Ellipses

May 29, 2024 - Defaults for these values, as well as other parameters of the plots, can be set globally using eulerr_options(). If the diagram has been fit using the data.frame or matrix methods and using the by argument, the plot area will be split into panels for each combination of the one to two factors. For users who are looking to plot their diagram using another package, all the necessary parameters can be collected if the result of this function is assigned to a variable (rather than printed to screen).

Stack Overflow

stackoverflow.com › questions › 65067981 › how-can-i-make-the-legend-horizontal-in-the-euler-plot-in-r

How can I make the legend horizontal in the euler plot in R? - Stack Overflow

Top answer

1 of 1

Copyplot(fit1,
     quantities = TRUE,
     fills = list(fill = col, alpha = 0.8),
     edges = "black",
     main = list(label = "test", cex = 0.9),
     legend = list(side = "bottom", nrow = 1, ncol = 3))

GitHub

github.com › jolars › eulerr › blob › main › R › plot.euler.R

eulerr/R/plot.euler.R at main · jolars/eulerr

Area-Proportional Euler and Venn Diagrams with Ellipses - eulerr/R/plot.euler.R at main · jolars/eulerr

Author jolars

R Project

search.r-project.org › CRAN › refmans › eulerr › html › plot.euler.html

R: Plot Euler and Venn diagrams

Plot diagrams fit with euler() and venn() using grid::Grid() graphics. This function sets up all the necessary plot parameters and computes the geometry of the diagram. plot.eulergram(), meanwhile, does the actual plotting of the diagram.

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Rdrr.io

rdrr.io › cran › eulerr › src › R › plot.euler.R

eulerr source: R/plot.euler.R

[plot.eulergram()] does the actual #' drawing of the diagram. #' @export #' @examples #' fit <- euler(c("A" = 10, "B" = 5, "A&B" = 3)) #' #' # Customize colors, remove borders, bump alpha, color labels white #' plot(fit, #' fills = list(fill = c("red", "steelblue4"), alpha = 0.5), #' labels = list(col = "white", font = 4)) #' #' # Add quantities to the plot #' plot(fit, quantities = TRUE) #' #' # Add a custom legend and retain quantities #' plot(fit, quantities = TRUE, legend = list(labels = c("foo", "bar"))) #' #' # Plot without fills and distinguish sets with border types instead #' plot(fit

GitHub

github.com › jolars › eulerr

GitHub - jolars/eulerr: Area-Proportional Euler and Venn Diagrams with Ellipses · GitHub

plot(fit) Please see the introductory vignette for a brief introduction or eulerr under the hood for details. eulerr is based on Eunoia, which is a Rust library for fitting and visualizing Euler and Venn diagrams.

Starred by 143 users

Forked by 20 users

Languages R 83.5% | Rust 14.3% | TeX 1.8%

Stack Overflow

stackoverflow.com › questions › 46044564 › customizing-euler-diagram-colors-with-eulerr-r

plot - Customizing Euler Diagram colors with eulerr R - Stack Overflow

Top answer

1 of 1

Sorry about this. That post is old and the arguments have changed.

Try this instead

fit2 <- euler(c(A = 16971, B = 218, C = 215, 
                "A&B" = 112, "A&C" = 112, "B&C"= 51,"A&B&C" = 23))
plot(fit2,
     fills = c("dodgerblue4", "darkgoldenrod1", "cornsilk4"),
     edges = FALSE,
     fontsize = 8,
     quantities = list(fontsize = 8))

CRAN

cran.r-project.org › web › packages › eulerr › vignettes › visualization.html

Visualizing Euler diagrams with eulerr - CRAN - R Project

September 23, 2025 - Once we have ascertained that our Euler diagram fits well, we can turn to visualizing the solution. For this purpose, eulerr relies on the grid graphics system (R Core Team 2017) and offers intuitive and granular control over the output. Plotting the ellipses is straightforward using the ...

Stack Exchange

bioinformatics.stackexchange.com › questions › 15265 › how-to-easily-make-complex-euler-venn-diagrams-in-r

how to easily make complex Euler/Venn diagrams in R? - Bioinformatics Stack Exchange

Top answer

1 of 2

Since you are in R, consider using the UpsetR library. It doesn't make Venn diagrams but it helps to visualize overlaps between any number of groups.

http://gehlenborglab.org/research/projects/upsetr/#:~:text=UpSetR%20is%20an%20R%20package,based%20on%20groupings%20and%20queries.

2 of 2

You might consider different ways of using the venneuler package. I'm not super thrilled with its usability (or with the accuracy of the overlaps), but you can get it to make custom Venn diagrams.

Here is a thread with some suggestions along these lines.

Below is some sample R code that I slightly modified from an old project that I used to make a 3-category Venn diagram.

I didn't run this to make sure that it works because of an irritating Java dependency issue on my OSX laptop that I don't feel like fixing right now, but as long as you have a JDK on your machine and can install the packages it should work.

# note irritating rJava dependency of venneuler
library(plotrix)
library(venneuler)

#A-B sharing: 200414
#B-C sharing: 17561
#A-C sharing: 16764
#All share 14201

# get coordinates for circles- replace as needed
# this function is supposed to plot stuff, but doesn't actually
ven = venneuler(c(C=48147-17561-16764+14201, 
                  B=347181-17561-200414+14201, 
                  A=325971-200414-16764+14201, 
                  "C&B"=17561, "B&A"=200414, "C&A"=16764, "A&B&C"=14201))

cats = c('A','B','C')

# note- this following only shows up in the .pdf printer, not in the X11 utility plotter
pdf('venn.pdf')
plot(c(-.5,1.5), c(-.5,1.5), type='n', xaxt='n', yaxt='n', bty='n', xlab='', ylab='')
draw.circle(ven$center[1,1], ven$center[1,2], ven$diameters[1],
        col = hsv(1,1,1,.5))
draw.circle(ven$center[2,1], ven$center[2,2], ven$diameters[2], 
            col = hsv(.5,1,1,.5))
draw.circle(ven$center[3,1], ven$center[3,2], ven$diameters[3],
            col = hsv(.1,1,1,.5))

text(ven$center[1,1]+.065, ven$center[1,2], labels=cats[3], cex=1.3)
text(ven$center[2,1], ven$center[2,2]-.2, labels=cats[2], cex=1.3)
text(ven$center[3,1], ven$center[3,2]+.2, labels=cats[1], cex=1.3)

dev.off()

Stack Overflow

stackoverflow.com › questions › 66354055 › euler-diagram-in-r

ggplot2 - Euler diagram in R - Stack Overflow

Top answer

1 of 1

As explained in the comments, you will not be able to express an arbitrary set of relationships for more than 3 sets with circles. The package eulerr uses ellipses to get more combinations and also make the result somewhat proportional to the number of elements in each region. I made a different package called nVennR that uses circles for the regions instead of the sets. The sets are then drawn around those circles:

> library(nVennR)
> myT <- read.table('clipboard', header = T)
> lol <- as.list(myT)
> myV <- plotVenn(lol)
> myV <- plotVenn(nVennObj = myV)
> myV <- plotVenn(nVennObj = myV)
> myV <- plotVenn(nVennObj = myV)
> myV <- plotVenn(nVennObj = myV)
> myV <- plotVenn(nVennObj = myV)
> myV <- showSVG(nVennObj = myV, opacity = 0.2)

Repeating the command myV <- plotVenn(nVennObj = myV) is necessary to get a compact shape. If you try it, you will see that it takes a couple of minutes, as it needs to perform several simulations. The package can take any number of sets, but things get really slow above 9 sets. The result:

You can save, edit and improve the picture to better show the information, but it is not trivial. You can find more information in the vignette.

RDocumentation

rdocumentation.org › packages › eulerr › versions › 1.0.0 › topics › plot.eulerr

plot.eulerr function - RDocumentation

Plot Euler diagrams from eulerr using base R graphics.

Stack Overflow

stackoverflow.com › questions › 73793777 › r-euler-plot-basic-questions

eulerr - R Euler Plot Basic Questions - Stack Overflow

fit1 <- euler(c("A" = 25, "B" = 0, "A&B" = 5)) plot(fit1) ... Find the answer to your question by asking. Ask question ... See similar questions with these tags. ... This question is in a collective: a subcommunity defined by tags with relevant content and experts.

Quantargo

quantargo.com › help › r › latest › packages › eulerr › 6.1.0

eulerr – R documentation – Quantargo

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more! ... Generate area-proportional Euler diagrams using numerical optimization. An Euler diagram is a generalization of a Venn diagram, relaxing the criterion that all interactions need to be represented.

CRAN

cran.r-project.org › web › packages › eulerr › vignettes › venn-diagrams.html

Venn diagrams with eulerr - CRAN - R Project

April 20, 2026 - As you can see in the last plot, there are cases where Euler diagrams can be misleading. Despite the algorithm attempting its best to make the diagram area-proportional, the constraints imposed by the geometry of the ellipses prevent a perfect fit. This is probably a case where a Venn diagram ...

Stack Overflow

stackoverflow.com › questions › tagged › eulerr

Newest 'eulerr' Questions - Stack Overflow

I am trying to create a scaled venn diagram using the eulerr package in R. My Code is below: plot(euler(c( "LUTS"=98, "Symptoms of UTI"=46, "Positive urine culture"=39, ...