How to change PROC SHEWHART VREF Line Thickness?

[narnia649]

I found different "W" options like "WLIMITS", "WTREND", etc.

But nothing for changing the width / thickness of lines generated with "VREF".

I can change the line type with "LVREF", but nothing about thickness...

[pink_poodle]

So, you are asking about the thickness of vertical reference line. There is probably nothing original about proc shewhart in that respect. Try adding this option to vref statement: / axis=x lineattrs=(thickness=3 /*color=darkred pattern=dash*/);

[narnia649]

Unfortunately, this kept erroring out for me. Thanks for the suggestion!

[Zard · Accepted solution]

A bit awkward, but this works...Suppose you want a reference line at 55. Add more lines just above and below 55, so you get the appearance of a thicker line.

proc shewhart data=sashelp.class;
  irchart height * name / vref=55 54.8 54.9 55.1 55.2;
run;

Otherwise, for ODS Graphics there might be a style template modification that would do it.