Hi group,
Trying to plot with ggplot2 different datasets of coordinats inside the
same chart.

Till now I can plot

ggmap(al1) + geom_point(data=points,colour="red", size = 4)

where points are tables



lon    lat

41.00   19.02


but I need to add other sets of points(tables of coordinates)


lon    lat

41.00   19.02

...     .....
*
*

with other colors in the same chart.Is that possible?

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