R change decimal place without round off

Question

> signif(1.89,digits=2)
[1] 1.9

I\'d like to have 1.8

Answer 1

> format(round(1.20, 2), nsmall = 2)
[1] "1.20"
> format(round(1, 2), nsmall = 2)
[1] "1.00"
> format(round(1.1234, 2), nsmall = 2)
[1] "1.12"

try this variation from this article so you can have more samples.