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help for ^sdpair^                                                 (STB-55: sbe33)
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Pitman's test of difference in variance for paired data
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        ^sdpair^ varname1 varname2 [weight] [^if^ exp] [^in^ range] 
              [^, format(^str^) l^evel^(^#^)^ ]

^fweight^s and ^aweight^s are allowed; see help @weights@.


Description
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^sdpair^ produces Pitman's confidence interval for the ratio of variances
for paired data.


Options
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^format(^str^)^ sets the format for the display of results.

^level(^#^)^ specifies the confidence level, in percent, for confidence 
    intervals. The default is ^level(95)^ or as set by ^set level^.


Examples 
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   . ^use suv2^
   . ^sdpair log_p log_gp^


Author
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        Paul Seed
        GKT School of Medicine
        King's London, UK
        email: paul.seed@@kcl.ac.uk


Also see
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    STB: STB-55 sbe33