Below we load the data file objects.rda containing the object coord. This object was made with the package sp and looks as follows in the console (it may help if you install and explore this package in RStudio yourself):

 

SpatialPoints:
         x    y
 [1,] 0.62 0.58
 [2,] 0.86 0.73
 [3,] 0.77 0.25
 [4,] 0.83 0.30
 [5,] 0.09 0.73
 [6,] 0.46 0.91
 [7,] 0.60 0.21
 [8,] 0.92 0.36
 [9,] 0.98 0.45
[10,] 0.04 0.91
Coordinate Reference System (CRS) arguments: NA 

 

• What is the class of the object coord? Store it in an object called coord_class.
• What are (all) the attributes of the object coord? Store them in an object called coord_attrib.
• The object coord contains a set of coordinates. Extract these, taking into account the class of coord. Store them in an object called coord_mat.