Remove several roxygen @param statements
Add an roxygen @param statement
Modify arguments in function
Add require statment for 'raster' package
Remove several unused statments from script
Stop function if 'SP_object' not of class 'SpatialPoints'
Stop function if any coordinates out of range
Get vector of longitude coordinates
Get vector of latitude coordinates
Create data frame with coordinates in row-major order
Remove unused statements from script
Create data frame of longlat coordinates
Get vector of GeoTIFF column numbers
Get vector of GeoTIFF row numbers
Create df with unique combinations of row/column numbers
Format values in df so leading zeroes are provided
Construct filename list for SRTM data downloads
Assign a temporary directory path to 'temp_dir'
Begin loop for downloading SRTM files
Construct expected filename for tif file