Danielle Ferry--
This is the well-worn precision question: the number _is_ rounded, but
a computer can store a decimal representation _exactly_ only if it is
a power of 2, e.g. 0.125 (see
http://www.stata.com/support/faqs/data/mod.html and
http://www.stata.com/support/faqs/data/prec.html for more detail).
local r2_1 = round(0.94653, 0.001)
di %32.31g `r2_1'
.94700000000000006
On 6/1/07, Rodrigo A. Alfaro <[email protected]> wrote:
I don't think so
R
local r2_1 = round(0.9465342199934567892345, 0.001)
di `r2_1'
.947
----- Original Message -----
From: "Ferry, Danielle (Exchange)" <[email protected]>
To: <[email protected]>
Sent: Friday, June 01, 2007 2:31 PM
Subject: st: Rounding
> Stata fails to round some numbers. Why? And can I do something about
> this?
> Here is the command I am using:
> local r2_1 = round(e(r2), 0.001)
> Here is a number that is not being rounded:
> .9470000000000001
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