Median polish
Encyclopedia
The median polish is an exploratory data analysis
procedure proposed by the statistician John Tukey
. It finds an additively-fit model for data in a two-way layout table (usually, results from a factorial experiment
) of the form row effect + column effect + overall median.
Exploratory data analysis
In statistics, exploratory data analysis is an approach to analysing data sets to summarize their main characteristics in easy-to-understand form, often with visual graphs, without using a statistical model or having formulated a hypothesis...
procedure proposed by the statistician John Tukey
John Tukey
John Wilder Tukey ForMemRS was an American statistician.- Biography :Tukey was born in New Bedford, Massachusetts in 1915, and obtained a B.A. in 1936 and M.Sc. in 1937, in chemistry, from Brown University, before moving to Princeton University where he received a Ph.D...
. It finds an additively-fit model for data in a two-way layout table (usually, results from a factorial experiment
Factorial experiment
In statistics, a full factorial experiment is an experiment whose design consists of two or more factors, each with discrete possible values or "levels", and whose experimental units take on all possible combinations of these levels across all such factors. A full factorial design may also be...
) of the form row effect + column effect + overall median.