I just love the way that the means and
SDs of scores based on 1-5 ratings can
be quoted to up to 7 significant figures.
More seriously, a small point of style
that applies to other problems too. A line like
replace `l' = . if `l' != 1 & `l' != 2 &`l' != 3 &`l' != 4
&`l' != 5
can also be written
replace `l' = . if !inlist(`l', 1, 2, 3, 4, 5)
It's quite easy to miss new Stata functions, which
tend to be added without fanfare and documented without
detailed examples. -inlist()- and its sibling
-inrange()- have been around for a few versions now.
Nick
[email protected]
Scott Merryman
> Googling - SF-12v2 How to score version 2 - points to a SAS
> program by Ron Hays at:
>
> http://gim.med.ucla.edu/FacultyPages/Hays/util.htm
>
> It is straight forward to convert to a Stata program. I have
> no idea if the
> program is correct or if the various factors that are hard coded (US
> population means and stand deviations and the varimax-rotated
> factor scoring
> coefficients) are correct.
>
> Below it the do-file to replicate Dr. Hays' SAS output and
> the Stata program
> sf12v2
>
> Hope this helps,
> Scott
>
>
> ----------do-file----------
> clear
> input I1-I12
> 1 1 1 1 1 1 1 1 1 1 1 1
> 1 1 3 3 3 3 3 3 3 3 3 3
> 1 1 . 3 3 3 3 3 3 3 3 3
> 5 5 1 1 1 . . . . . . .
> end
>
> // Rename variables
> local i = 1
> foreach l in I1 I2A I2B I3A I3B I4A I4B I5 I6A I6B
> I6C I7 {
> capture: rename I`i' `l'
> local ++i
> }
> l
> sf12v2
>
> ----------sf12v2-------------
>
> program sf12v2
> version 9.1
> qui {
>
> // Code out-of-range values to missing
> foreach l in I1 I3A I3B I4A I4B I5 I6A I6B I6C I7 {
> replace `l' = . if `l' != 1 & `l' != 2 &`l' !=
> 3 &`l' != 4
> &`l' != 5
> }
>
> foreach l in I2A I2B {
> replace `l' =. if `l' != 1 & `l' != 2 &`l' != 3
> }
etc.
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
