[R-sig-Geo] Elevation profiles

[Alexander Shenkin]

Hello All,

I've done this in ArcMAP, but further requirements are making it harder 
to do it there, so was hoping I can do it in R.

I have SRTM DEM rasters, and want to create an elevation profile. This 
profile is drawn along a polyline connecting 10 GPS points.  I was able 
to do all that in arcmap.  Now, however, I want to create the profile 
from an average elevation drawn from a swath of arbitrary width, rather 
than by just a line.  I hope this makes sense.

Apologies for not including reproducible code here - I'm hoping there's 
enough here to point me in a direction in terms of packages and 
algorithms regardless.  Thanks in advance.

Allie