topic Re: Yaxis scale in Graphics Programming

Yaxis scale

Johnlee — Thu, 14 Aug 2014 18:15:17 GMT

Dear All,

I set up yaxis scale as from 0.1 to 100 but it does not work (see dataset and code below). Could someone help me? I use SAS 9.2 (32). thanks!

data char;
input Date Rate1 RL Rate2 RU;

datalines;

0 . . . .
2 2.5 3.65 2.552 1.482
4 2.444 3.811 2.28 1.118
8 2.60 4.185 2.545 1.039
12 2.385 3.492 2.737 1.316
16 2.454 3.957 2.395 1.182
24 2.524 3.857 2.755 1.515
;

proc sgplot data=char;

xaxis label='Date' values=(0 to 24 by 4) ;
yaxis label="Rate" values=(0.1 to 100 by 10) type=log logbase=10 logstyle=logexpand minor ;
series x=Date y=Rate2 / lineattrs=(pattern=solid color=black thickness=1.5)
markers markerattrs =(size=9 color=black symbol=circle)
legendlabel='Rate2' name='Sbar';
scatter x=Date y=Rate2 / yerrorupper=RU markerattrs =(size=9 color=black symbol=circle) ;

series x=Date y=Rate1 / lineattrs=(pattern=dash color=black thickness=1.5)
                             markers markerattrs =(size=9 color=black symbol=x)
                             legendlabel='Rate1' name='Ebar';
scatter x=Date y=Rate1 / yerrorlower=RL markerattrs =(size=9 color=black symbol=x) ;

keylegend "Sbar" "Ebar"/position=topright location=inside across=1;
run;

Re: Yaxis scale

ballardw — Thu, 14 Aug 2014 19:19:13 GMT

You're going to get the lob value not the value you specify in the axis statement.

What exactly do you want that axis to look like? "Doesn't work" is kind of hard to interpret without details.

Re: Yaxis scale

Johnlee — Thu, 14 Aug 2014 20:05:34 GMT

Dear Ballardw,

I want the y-axis scale to be from 0.1 to 100. how to do that? thanks! John

Re: Yaxis scale

Johnlee — Thu, 14 Aug 2014 20:09:46 GMT

after I set the "values=(0.1 to 100 by 10)", the scale still showed from 1 to 10, not from 0.1 to 100 as I wanted

Re: Yaxis scale

stat_sas — Thu, 14 Aug 2014 20:40:53 GMT

Hi,

Not sure, how type=log works in the above code? log for values < 1 will generate negative values.

Re: Yaxis scale

ballardw — Thu, 14 Aug 2014 20:48:12 GMT

I'm curious about what you think displaying 100 means in context of a logarithmic axis when your data example has a max value less than 5.

Re: Yaxis scale

Jay54 — Thu, 14 Aug 2014 21:23:27 GMT

If you are using SAS 9.3 or later, the following YAXIS code may work better for you:

yaxis label="Rate" values=(0.1 1 10 50 100) min=0.1 max=100 type=log logbase=10 logstyle=logexpand minor ;

Re: Yaxis scale

Johnlee — Fri, 15 Aug 2014 03:03:48 GMT

the reason to set up from 0.1 to 100 is to compare with other figures that have the same scale

Re: Yaxis scale

ballardw — Fri, 15 Aug 2014 14:40:56 GMT

If you succeed in getting that label your displayed graph is going to be pretty unreadable unless you make it like 15 or 20 inches in the vertical dimension since you data only goes to 5 it will only use 5% of the graph vertical space.

Re: Yaxis scale

Johnlee — Mon, 18 Aug 2014 16:10:03 GMT

Sanjay,

it works at SAS 9.4.

Thanks!!!

John