Displaying 2 results from an estimated 2 matches for "my_lin".
Did you mean:
my_lib
2012 May 01
0
Plotting shapefiles on existing maps
..., the
input shapefile has to be in geographical, not projected coordinates.
If you know the projection of the shapefile (or if there is a *.prj file
accompanying the *.shp), try using the transform() method in the rgdal
package to do this.
If there is a *.prj file, this should work:
library(rgdal)
my_lines <- readOGR(<directory>, <shapefile_without_extension>)
my_lines1 <- transform(my_lines, CRS("+proj=longlat +ellps=WGS84"))
*I believe the above line should be: my_lines1 <- spTransform(my_lines,
CRS("+proj=longlat +ellps=WGS84"))
plot(my_lines1, add=TRUE...
2018 May 22
3
legend order in ggplot2
Hi,
I'd like to graph three lines on ggplot2 and I intend the lines to be
"solid", "dashed", and "dotted". The legend names are "name_b", "name_a",
"name_c". I'd like to legend to present in the order: the "name_b" at the
top, and "name_c" at the bottom.
As a consequence, the legend is indeed in the order: