Help using Base SAS procedures

Problem Graph

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Occasional Contributor
Posts: 9

Problem Graph

Hello everyone,

I'm trying to make a graph using the price of 4 stocks (Goldman sachs, coca cola, yahoo and apple) on the same graph. I have taken their daily value from 2007 till 2014 (8 years) and I want to make a graph to see the evolution of the 4 stocks on the same graph. When I tried with the command below, I get something too concentrated (for example, the apple stock varies from 20 to more than 600 during these 8 years). Can you tell me what I can do to have a good graph ? Here is the command I used :

/* représentation graphique des cours boursiers */

proc gplot Skalli.base_union ;

symbol1 interpol=join value=none color=blue ;

symbol2 interpol=join value=none color=red ;

symbol3 interpol=join value=none color=green ;

symbol4 interpol=join value=none color=purple ;

plot (Goldman_Sachs coca_cola Yahoo Apple_)*Date / legend overlay ;

Title "Représentation des cours des quatre actions qui composent notre portefeuile" ;

run ;

ods rtf close;

Quit ;

I also tried this command :

                                                                                                                              

/* Définir le titre */                                                                                                     

title1 "Représentation des cours des quatre actions qui composent notre portefeuile";                                                                                     

                                                                                                                                       

/* Définir les symboles */                                                                                                                                                                       

symbol1 interpol=join value=none color=blue height=2;

symbol2 interpol=join value=none color=red height=2;

symbol3 interpol=join value=none color=green height=2;

symbol4 interpol=join value=none color=purple height=2;                                                                                                                                     

                                                                                                                                       

/* Define axis characteristics */                                                                                                      

axis1 label=("Date") minor=none offset=(1,1);                                                                                    

axis2 label=(angle=90 "Cours")                                                                                                    

      order=(0 to 800 by 50) minor=(n=1);                                                                                              

                                                                                                                                       

proc gplot Skalli.base_union ;                                                                                                                

   plot (Goldman_Sachs coca_cola Yahoo Apple_)*Date / overlay legend=legend1                                                                              

                                   haxis=axis1 vaxis=axis2;                                                                            

run;                                                                                                                                   

quit;  

Can you tell me what I can do to have a good graph ?What command can I add to have a better result ?


Thank you very much.

SAS Super FREQ
Posts: 8,743

Re: Problem Graph

Hi:

  Have you considered the SG Procedures? Sometimes they are much easier than GPLOT. See this paper:

from: http://www2.sas.com/proceedings/forum2008/255-2008.pdf  

cynthia

SAS Employee
Posts: 967

Re: Problem Graph

Since each stock's price can be in a different price range (sometimes *very* different), it is often not fair to plot/compare them to the same scale. One thing I've found it useful to do is to plot each stock separately, and let each one auto-scale.

I show, in detail, how to do this in Example 14 of my book SAS/Graph: Beyond the Basics. Here is the code from that example:

SAS/Graph Stock Market Table

http://robslink.com/SAS/book/example14.sas

And here is an example of what it looks like when you plot several different stocks:

stock_table.png

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