I wrote
> 2. Possibly inaccurate percentiles
> ==================================
>
> In the example above, the 7th percentile is 8. But according to the
default
> method, x_7 should be given by the mean of x[6] and x[7] because P =
> _N*(7/100) = 7, the smallest index i > P is i = 8 and (i-1) = P. This
> implies that x_p should be 7.5 for p = 7.
I should have written,
2. Possibly inaccurate percentiles
==================================
In the example above, the 7th percentile is 8. But according to the default
method, x_7 should be given by the mean of x[7] and x[8] because
^ ^
P = _N*(7/100) = 7, the smallest index i > P is i = 8 and (i-1) = P. This
implies that x_p should be 7.5 for p = 7.
Patrick Joly
joly.patrick@ic.gc.ca
pat.joly@utoronto.ca
*
* 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/