ggradar | radar charts with ggplot2 | Data Visualization library

Given a sample data as follows:

I am using ggradar to create radar plots. I have a case like this:

I want to create a radar chart with ggirahExtra::ggRadar. The problem is that I have long labels and they are clipped. I thought I could create more space between label and plot by adding margin = margin(0,0,2,0, "cm") to element_text in axis.text, but its not working.

Any ideas how to increase the label space are welcome (apart from making the font smaller).

Add: As @tjebo suggests in the comments, it might be easier, or maybe the only way to make it work, to change the underlying functions in ggRadar especially coord_radar. Any suggestions of how to do this are welcome.

I'm hoping to calculate the area of a polygon using ggradar.

From the research I've done so far, I think the goal is to calculate the area of each triangle and add them all together. Since we know the distance from the centroid to each point and the angle between the two sides of each triangle, we can calculate the area for each wedge using side1 x side2 x sin(pi/n)/2 (where n = number of variables, in this case 4) and adding all the wedges together.

Using mtcars data as an example:

I am trying to add title for all my plot in a loop, here is what I have done:

first I split the data with the split() fuction:

Hi everyone I am making a a radar plot and I want to highlight the two highest values in the factors or levels. Highlight in this case is to make the text of the top tree values bold

This issue is so strange to me. So I tried to create a radar chart using ggRadar from the interactive ggplot2 package ggiraphExtra, and for some reason it can't identify my particular data.frame. Emphasise "particular", other data.frames work fine with this plot statement but my particular data.frame won't.

Here's an example using the iris dataset, this example works fine.

Here's my code: