topic Controlling time intervals in the x axis in Graphics Programming

Controlling time intervals in the x axis

Errant — Thu, 07 Jun 2018 14:33:10 GMT

Hi everyone,

I'm trying to create a graph, that delineates everything by year.

proc sgplot data=HW2.earthquakes(where=(year >= 2000));
  	XAXIS interval = year;
	Scatter X = year Y = magnitude;
	Title 'Magnitude of Earthquakes occuring in 2000 and beyond';
run;

When I run this code, I wind up with up with a graph that still shows ticks in two year increments.

How do I get it to show a tick for every year?

Re: Controlling time intervals in the x axis

DanH_sas — Thu, 07 Jun 2018 14:46:04 GMT

Judging by the plot, YEAR is not really a datetime variable, so INTERVAL will not work for you. For this case, I think you just want to set TYPE=DISCRETE on the XAXIS statement instead of using the default linear axis for numeric data.

Hope this helps!

Dan

Re: Controlling time intervals in the x axis

Errant — Thu, 07 Jun 2018 14:49:12 GMT

It worked great, thank you!

Re: Controlling time intervals in the x axis

ballardw — Thu, 07 Jun 2018 14:49:57 GMT

To force display of tick mark values add a VALUES option to the XAXIS statement such as VALUES=(2000 to 2011 by 1) instead of INTERVAL.

It may be that just removing INTERVAL= would work but depending on the range of values and the display size each year may not receive a tick mark.

The interval option is going to want a DATE, TIME or DATETIME valued variable for the x value and yours is very likely not from the display and values shown.