In this article, Pivotal engineer and predictive analytics expert Hai Qian explains how someone new to R can get started performing statistical analysis on data stores in Greenplum Database, Pivotal HD and PostgreSQL in just 20 minutes using PivotalR. First, there is some background on R’s popularity, then the articles ... [Read more...]

[Read more...]

Two of the most common methods of statistical inference are frequentism and Bayesianism (see Bayesian and Frequentist Approaches: Ask the Right Question for some good discussion). In both cases we are attempting to perform reliable inference of unknown quantities from related observations. And in both cases inference is made possible ... [Read more...]

Experiment, be curious: though interfering friends may frown, get furious at each attempt to hold you down (Tony Bennett, Experiment) Instructions: Take a pencil and measure it Take a piece of paper and draw parallel lines on it (you can use the pencil, of course); separation between lines should double ... [Read more...]

Introduction The tirs1 band of landsat-8 imagery (see [1]) is a near-thermal band, from which a quantity called ``brightness temperature’’ may be inferred. As explained in [2], the brightness temperature in Kelvin is computed with where and are stored in the image metadata, and , where again and are stored in the metadata. ... [Read more...]

Discussing problems vs. finding solutions: an operational framework for dealing with imperfect detection in species distribution modelling, International Statistical Ecology Conference 2014, Montpellier, France. [Read more...]