<>
Your code does achieve the immediate goal of aligning the zeroes, but at a higher variance in one of the series, such as below, the left axis can easily look ridiculous.
*************
clear*
set seed 123456
set obs 100
gen time=_n
gen serie1=rnormal()
gen serie2=rnormal(3,5)
reshape long serie, i(time) j(nr)
sum serie
tw ///
|| line serie time if nr==1, yaxis(1) ///
|| line serie time if nr==2, yaxis(2) ///
|| , yscale(range(`=r(min)-1' `=r(max)+1') axis(1)) ///
yscale(range(`=r(min)-1' `=r(max)+1') axis(2)) ///
yline(0)
*************
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]] Im Auftrag von Ulrich Kohler
Gesendet: Dienstag, 26. Januar 2010 14:24
An: [email protected]
Betreff: Re: st: AW: RE: axis(1) and axis(2) scales in graphs
Am Dienstag, den 26.01.2010, 13:47 +0100 schrieb Martin Weiss:
> <>
>
> " I am not completely clear what the problem is"
>
>
>
> Actually, I found the problem exceptionally clear in this case:
>
>
> *************
> clear*
> set seed 123456
> set obs 100
> gen time=_n
> gen serieA=rnormal()
> gen serieB=rnormal(1,2)
> tw (line serieA time, yaxis(1) yli(0)) (line serieB time, yaxis(2))
> *************
>
> I just did not know how to align the zero point on the left and right axis,
> to be honest...
Perhaps something along this lines
-------------------------------------------
clear*
set seed 123456
set obs 100
gen time=_n
gen serie1=rnormal()
gen serie2=rnormal(1,2)
reshape long serie, i(time) j(nr)
sum serie
tw ///
|| line serie time if nr==1, yaxis(1) ///
|| line serie time if nr==2, yaxis(2) ///
|| , yscale(range(`=r(min)-1' `=r(max)+1') axis(1)) ///
yscale(range(`=r(min)-1' `=r(max)+1') axis(2)) ///
yline(0)
-------------------------------------------------
Uli
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