}
private SEXP colon(double n1, double n2) {
Sequences fn = new Sequences();
return fn.colonSequence(topLevelContext, new DoubleArrayVector(n1), new DoubleArrayVector(n2));
}
@Test
public void assignment() {
assertThat( eval( "x <- 1:3 "), elementsEqualTo(1, 2, 3));