RE: st: variable format (graphics example)

["Feiveson, Alan H. (JSC-SK311)" <alan.h.feiveson@nasa.gov>]

As an example, try this:


. set obs 4
obs was 0, now 4

. gen u = uniform()
. gen ru = round(u,.01)
. expand 10
(36 observations created)

. gen y = rnormal()
. gen x = y+rnormal()

. scatter y x,by(ru)


Al Feiveson


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Joerg Luedicke
Sent: Thursday, March 10, 2011 2:02 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: variable format

2011/3/10 Andreas Drichoutis <adrihout@cc.uoi.gr>:
> Well it didn't. I tried gen varnew=round(var,.01) and all it did is to
> create a copy of the original variable. Values are displayed with 2 decimals
> but the actual value is 7 decimals long.
>

well, it should work. What happens if you try the following:

clear all
set obs 100
gen x=runiform()+1
gen x2=round(x,.01)

That works for me.

J.
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-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Feiveson, Alan H. (JSC-SK311)
Sent: Thursday, March 10, 2011 3:23 PM
To: statalist@hsphsun2.harvard.edu
Subject: RE: st: variable format

Hi - I have come across this problem before when I wanted to use the value of a variable or macro in a graphics title or axis label. Rounding doesn't work. I had to convert the values to strings and snip off the offending decimals (too much work).

Al Feiveson

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Daniel Klein
Sent: Thursday, March 10, 2011 2:09 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: variable format

Dear Andreas,

since it is not possible to store values like 8.77 exactly, like Maarten already mentioned, you might want to tell us more about the reason, why you want your variables to only have two decimals. Maybe there is another way to solve the underlying problem. 
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