CODEWITHSUNDEEP
rggplot2polar-coordinates
user5059911
user5059911

Reputation:

3D polar plot in R

I have plotted polar coordinates for my data by using ggplot2.

my dataset is in this format:

 Time    Lat    Long   Act
 18:00  21.05   70.00  feed
 18:45  21.00   75.00  walk
 19:00  21.09   77.00  walk
 19:05  24.98   77.09  rest

Code :

library(ggplot2)
plot.new()

ggplot(aes(x = Lat, y = Long, colour = Act), data = file) + 
geom_point() 
ggplot(aes(x= Lat, y = Long , colour = Act), data = file) + 
geom_point() + 
coord_polar(theta = "y")

This is the polar coordinate plot which I get: here

This plot is having latitude and longitude. Now I would like to add one more dimension "time". How can I do this ?. How can I make this 2D polar plot in 3D polar plot ?

Upvotes: 2

Views: 1557

Answers (1)

RHertel
RHertel

Reputation: 23788

You could try to scale the size of the points with the value of the variable "time". Unfortunately your example is not reproducible, but something along these lines could work:

ggplot(aes(x= Latitude, y = Longitude , colour = ACTIVITY, size=time), data = Data) + geom_point(shape=21) + coord_polar(theta = "y") + scale_size_area(max_size=10)

Below you can see a reproducible example, which is based on data that is used in "The R Graphics Cookbook" by Winston Chang (O'Reilly 2013).

In this case, the dot size represents the temperature, the color refers to a wind speed category, the direction of the wind is plotted in polar coordinates and the radius is the average value of the wind.

library(gcookbook)
library(ggplot2)
p <- ggplot(wind, aes(x=WindDir, y=WindAvg, size=Temp, fill=SpeedCat)) +
     coord_polar() + geom_point(shape=21)+scale_size_area(max_size=10) +
     scale_x_continuous(limits=c(0,360),breaks=seq(0,360,by=45))

This is the output: enter image description here

Hope this helps.

Upvotes: 4

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