Speaking Stata: The protean quantile plot
Abstract. Quantile plots showing by default ordered values versus cumulative
probabilities are both well known and also often neglected, considering
their major advantages. Their flexibility and power is emphasized by using
the qplot program to show several variants on the standard form,
making full use of options for reverse, ranked, and transformed scales and
for superimposing and juxtaposing quantile traces. Examples are drawn from
the analysis of species abundance data in ecology. A revised version of
qplot is formally released with this column. Distribution plots in
which the axes are interchanged are also discussed briefly, in conjunction
with a revised version of distplot, also released now.
View all articles by this author:
Nicholas J. Cox
View all articles with these keywords:
qplot, distplot, distributions, quantile plots, statistical graphics, species abundance, ecology, Whittaker plots, broken stick, lognormal, power laws, scaling laws
Download citation: BibTeX RIS
Download citation and abstract: BibTeX RIS
|
