ggplot: Is it possible to plot different colors points for different time windows?

Question

I have a question regarding ggplot.

I have a dataset that consists of different timepoints \"time\", x and y coordinates (named X_MA and Y_MA), see an excerpt of my data

Answer 1

You can do something like this:

ggplot(data2,aes(x = X_MA, y = Y_MA, 
                 color =  cut(time, breaks = c(0,2,12,1000), labels = c("First two 
                 seconds","Middle two seconds","Last period")))) + 
       stat_density_2d(aes(fill = ..density..), geom = "raster", contour = FALSE) + 
       scale_fill_distiller(palette=8, direction=-1) + 
       scale_x_continuous(expand = c(0, 0)) + 
       scale_y_continuous(expand = c(0, 0)) + 
       theme(legend.position='n_one') + 
       geom_point(size=1) +
       guides(color=guide_legend(title="Time category"))

Cut will split you data set up into intevals, which you can name here. Note that you will need to change the numbers for the intervals - I don't know what the first time reading is in your dataset, but I have left here for illustration.

The guides bit at the bottom is there simply to name the legend.