|Date: ||Thu, 12 Jul 2007 22:58:10 +1000|
|Sender: ||"SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>|
|From: ||David Johnson <d@DKVJ.BIZ>|
|Subject: ||Re: help with windrose and incorporation of other data|
|Content-Type: ||text/plain; charset="iso-8859-1"|
I thought the definition of a vector was length and direction, so GRadar
lines gave direction and strength by virtue of their angle and length.
That seems to be a classic definition for me. If you want to change that to
include time, what resolution do you want to achieve? If it is in 4 or 6
segments by day, perhaps you could start the vector at some position offset
from the centre of the plot. One might see something lovely like a swirl as
the day progressed and the wind shifted gradually around the face;
strengthening and abating.
From: SAS(r) Discussion [mailto:SAS-L@LISTSERV.UGA.EDU]On Behalf Of
Sent: Thursday, 12 July 2007 1:00 AM
Subject: help with windrose and incorporation of other data
I have data (value, time) that I have graphed using proc gplot, and
wind data (speed, direction) that I used proc gradar to graph a very
messy "windrose." Any suggestions for a better way to plot a
windrose? Also, a way to incorporate the concetration and wind
direction/speed by time?
I saw the SUGI paper on creating a windrose plot using %SLICE and
%DRAW, but I am having a hard time following it...