In a teaching demo that I have conducted, I discussed on how R can be used to analyze trends and spatial pattern of poverty incidence in th...

In my previous post, I showed how to make a 3D view of an area using the persp function. However, I felt this was not a complete represent...

Taken from a previous post in other website, maps below show the locations of epicenters and sequence of earthquakes that struck Negros las...

Talking about elevation, one can also plot a wire frame 3D view of an area using the persp function. Using the same data source from my pre...

Saw a map produced by my previous student using a commercial GIS software.Using R raster package and data from diva-gis.org . I produced a s...

While at Puerto Princesa Airport in Palawan and waiting for my flight back to Manila, I opened my laptop and started doing what I usually do...

Using the same data and package from my previous post, but minor tweak on the code, I produced the map below: