OT Quantile Regression Why not ranks or percentiles?

Posted by Art Kendall on Oct 16, 2013; 5:46pm
URL: http://spssx-discussion.165.s1.nabble.com/OT-Quantile-Regression-Why-not-ranks-or-percentiles-tp5722584.html

Just curious.

As a general rule of thumb one wants a variable to be as fine grained as is practical in the situation.
However, the few examples I have seen of quantile regression have coarsened to 5 or so values.

Is there a substantive or computational reason for  using this few values?