st: RE: Problem with caption in a graph

[Joe Canner <jcanner1@jhmi.edu>]

Benjamin,

I've seen this problem before in a user-written module and I think the author solved it by converting the number to a string at the same time, something like this:

local r2=string(round(e(r2),0.001),"%5.3f")

I think it might even work to leave out the -round()- because formatting the number in string() should round automatically.  (Sorry, I can't check at the moment).

Regards,
Joe Canner
Johns Hopkins University School of Medicine
 
________________________________________
From: owner-statalist@hsphsun2.harvard.edu [owner-statalist@hsphsun2.harvard.edu] on behalf of Benjamin Villena [b_villena@yahoo.com]
Sent: Saturday, September 07, 2013 5:32 PM
To: statalist@hsphsun2.harvard.edu
Subject: st: Problem with caption in a graph

Dear Statalist,
 I want to place the R-squared of a regression on a graph using a code like this

reg y x
local r2=round(e(r2),0.001)
line y x, caption("R2=`r2'" , size(small) position(2) ring(0))

The problem is that the caption text shows R2=0.87600000000000000000001 despite the fact I'm using round to keep only three decimal digits.

I'd appreciate if you can give me some advice on how to deal with this issue.

Thanks


Benjamín

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