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How to add a title to a raster plot?
After studying for a while how to create a chart from a raster object, I got almost everything I needed except to add a title to spplot’s legend. to use legend.args = list (title=”XXX (m)”). The below picture pinpoint, the feature I added manually to my plot, and in which I would like to include using R.
What are the labels in the spplot function?
Labels for identification are the row.names of the attribute table row.names (as.data.frame (obj)). If TRUE, identify on panel (1,1); for identifying on panel i,j, pass the value c (i,j) optional; may be useful to plot a transformed value.
Can you use mtext with R-raster spplot?
You cannot use mtext here, because spplot is based on the lattice package. mtext can only be used with base graphics. The lattice package makes use of the grid graphics engine, which is a low-level graphics system for R. Both packages are part of the base R distribution.
What is the return value of spplot locator?
If identify is TRUE, the plot is plotted and the return value is a vector with row names of the selected points. spplot.locator returns a matrix with identified point locations; use trellis.focus first to focus on a given panel. get_col_regions returns the default value for col.regions
How do you add a legend to a plot?
You can add a legend to your plot too. When you add a legend, you use the following elements to specify labels and colors: location: you can specify an x and Y location of the plot Or generally specify the location e.g. ‘bottomright’ keyword. You could also use top, topright, etc.
How to create custom legends with GIS in R?
GIS in R: Plot Spatial Data and Create Custom Legends in R Welcome to the first lesson in the Create Maps and Custom Legends in R with ggplot and Base Plot module. Learn how to create maps with custom colors and legends in both base R and with ggplot in R. BONUS!