RObject _ Thing = Thing -- replace a single element of an R object

• Operator: _

• Usage:

  x_i = e

• Inputs:
  • x, a R object,
  • i, a thing, the index (one-based);
  • e, a thing, the replacement value;
• Outputs:
  • a R object, a copy of x with its i-th element replaced by e;

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 = 3

o2 =  [1]  3  6  7  8  9 10 11 12 13 14 15

o2 : RObject of type integer

i3 : x

o3 =  [1]  5  6  7  8  9 10 11 12 13 14 15

o3 : RObject of type integer