[R] decimal number format as quarter

[David Winsemius]

On Feb 8, 2012, at 9:12 AM, Arnaud Gaboury wrote:

> Hello,
>
> I have to deal with numbers with a decimal part as quarter, coming  
> from two systems with different way to show decimals. I need to tell  
> R these are in fact the same number.
>
> On one side my number are formatted this way : 2.2 , 2.4 and 2.6. On  
> the other side, I have 2.25, 2.50 and 2.75.
> All numbers are in fact 2.1/4, 2.1/2, 2.3/4.
>
> How can I tell R 2.2 is 2.25, 2.4 is 2.50 and 2.6 is 2.75 ?

  vec <- c( 2.2 , 2.4 , 2.6)
  trunc(vec) + (vec-trunc(vec))*(2.5/2)
[1] 2.25 2.50 2.75


>
> TY for any help.
>
> Arnaud Gaboury
>
> A2CT2 Ltd.
>
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David Winsemius, MD
West Hartford, CT