[R] customize the step value

[Catherine Walt]

dear members,

Sorry I am newbie on R.
as we saw below:

> 1.5:3.5
[1] 1.5 2.5 3.5

How can I make the step to 0.5?
I want the result:

1.5 2.0 2.5 3.0 3.5

Thanks.
Cathy