Solved

SAS Control Chart Question

Posted on 2014-12-15
1
115 Views
Last Modified: 2016-02-13
I am new to SAS. I need to only return control charts that identify outliers.  Below is my current control chart code.  Is there a function or syntax that i could use that would only return outliers.

proc shewhart data=mywork.TREND; by recCd;
xchart BALAMT * MonYr / sigmas=2;
      run;
0
Comment
Question by:Thomask23
1 Comment
 
LVL 8

Accepted Solution

by:
ShannonEE earned 500 total points
ID: 40501749
Hi there Thomask23,

Ask the procedure to output the chart limits using the outlimits option on XCHART, and then use those limits to select the outliers.


proc shewhart data=mywork.TREND; by recCd;
        xchart BALAMT * MonYr /
                sigmas=2
                OUTLIMITS=WORK.limits(LABEL="Chart limits for BALAMT");
 run;

** Select only the outliers (those beyond the chart control limits givren by _LCLX_ and _UCLX_ **;
** can use SQL or could use a data step **;

proc sql;
        create table Mywork.Outliers as
        select Balamt,
               MonYr
        from  Mywork.Trend
        left join
              work.Limits
        on (Balamt < _LCLX_) or
           (Balamt > _UCLX_);
quit;

Open in new window


More details at

SAS support site

Hope this helps.

Regards,
Ian
0

Featured Post

Give your grad a cloud of their own!

With up to 8TB of storage, give your favorite graduate their own personal cloud to centralize all their photos, videos and music in one safe place. They can save, sync and share all their stuff, and automatic photo backup helps free up space on their smartphone and tablet.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Throughout my career I’ve read many articles and performed due diligence on recovering VM’s that broke on the XenServer platform. From my experience and perspective it seems to be an ample amount of confusion as to a good base method to start with. …
If you ever consider purchasing any Daossoft Software Products, DON'T expect any meaningful support - This article should convince you why!
This tutorial will walk an individual through configuring a drive on a Windows Server 2008 to perform shadow copies in order to quickly recover deleted files and folders. Click on Start and then select Computer to view the available drives on the se…
This tutorial will show how to configure a single USB drive with a separate folder for each day of the week. This will allow each of the backups to be kept separate preventing the previous day’s backup from being overwritten. The USB drive must be s…

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now