RObject Array -- extract multiple elements of an R object

• Operator: SPACE

• Usage:

  x[i, j, ...]

• Inputs:
  • x, a R object,
  • an array, indices i, j, and so on (one-based);
• Outputs:
  • a R object, the elements of x at the given indices;

i1 : x = RObject toList(5..15)

o1 =  [1]  5  6  7  8  9 10 11 12 13 14 15

o1 : RObject of type integer

i2 : x[1, 4..8]

o2 = [1]  5  8  9 10 11 12

o2 : RObject of type integer