Interface Between GMT Map-Making Software and R
Convert Degrees to Numeric
Distance Between Geographic Coordinates
Interface between the GMT Map-Making Software and R
GMT Example Data
Initialize GMT Session
Invoke shell command
Convert Numeric to Degrees
Add Bars to GMT Mercator Map
Finalize GMT Map
Draw GMT Map
Add Text/Symbols to GMT Map
Add Lines/Symbols to GMT Map
Prepare Data for GMT
Interface between the GMT map-making software and R, enabling the user to manipulate geographic data within R and call GMT commands to draw and annotate maps in postscript format. The gmt package is about interactive data analysis, rapidly visualizing subsets and summaries of geographic data, while performing statistical analysis in the R console.