BookmarkSubscribeRSS Feed
Quentin
Super User

I'm using PROC SGPLOT VLINE statement to make a series plot that plots the frequency of an event over time (by month).  Events are sparse, so some months have no events

 

Given data like below (two failures in January, one failure in February, three failures in March, one failure in June).

data have ;
input FailDate mmddyy10.;
cards ;
1/1/2018
1/2/2018
2/1/2018
3/1/2018
3/2/2018
3/3/2018
6/1/2018
;

 

 

I'm plotting like:

proc sgplot data=have;
  xaxis type=time interval=month ;
  vline FailDate / stat=freq markers;
  format FailDate yymon. ;
run ;

The resulting plot shows four points (Jan, Feb, Mar, Jun).  I would like it to show zeroes for April and May, because there were no events.

 

It feels like there should an easy way to do this?  SAS knows that it has a time axis, and it knows it's counting FailDate by month.  

 

If there isn't an easy way I know I can calculate the counts myself, and then force in rows with count=0 and then user a series plot to plot the line.  But I'd be happy if there were some option like how PROC TABULATE can use preloadfmt order=data missing=0 to force in zeroes for empty categories.

 

In reality I'll have a spaghetti plot, with one line for each group.

 

Thanks.

 

The Boston Area SAS Users Group is hosting free webinars!
Next up: SAS Trivia Quiz hosted by SAS on Wednesday May 21.
Register now at https://www.basug.org/events.
1 REPLY 1
ballardw
Super User

Add some dates to the data for those months, summarize something to get counts and use a different statistic such as sum and/or the Freq= variablename

 

 

 

sas-innovate-white.png

Missed SAS Innovate in Orlando?

Catch the best of SAS Innovate 2025 — anytime, anywhere. Stream powerful keynotes, real-world demos, and game-changing insights from the world’s leading data and AI minds.

 

Register now

How to Concatenate Values

Learn how use the CAT functions in SAS to join values from multiple variables into a single value.

Find more tutorials on the SAS Users YouTube channel.

SAS Training: Just a Click Away

 Ready to level-up your skills? Choose your own adventure.

Browse our catalog!

Discussion stats
  • 1 reply
  • 753 views
  • 0 likes
  • 2 in conversation