Category
page 1Nonparametric statistics
histogram
thumb|In this histogram, height is divided into bins of equal width (5 feet)
chi-square test
statistical test
Spearman's rank correlation coefficient
nonparametric measure of rank correlation
Mann–Whitney U test
nonparametric test of the null hypothesis that, for randomly picked values X and Y from 2 populations, Pr(X>Y)=Pr(Y>X)
k-nearest neighbors algorithm
classification algorithm
non-parametric statistics
branch of statistics that is not based solely on parametrized families of probability distributions
Kolmogorov–Smirnov test
nonparametric statistical test
ranking
A ranking is a relationship between a set of items, often recorded in a list, such that, for any two items, the first is either "ranked higher than", "ranked lower than", or "ranked equal to" the second. In mathematics, this is known as a weak order or total preorder of objects. It is not necessarily a total order of objects because two different objects can have the same ranking. The rankings themselves are totally ordered. For example, materials are totally preordered by hardness, while degrees of hardness are totally ordered. If two items are the same in rank it is considered a tie.
empirical distribution function
distribution function associated with the empirical measure of a sample
Cohen's kappa
statistic measuring inter-rater agreement for categorical items
Kruskal–Wallis one-way analysis of variance
non-parametric method for testing whether samples originate from the same distribution
Fisher's exact test
Fisher test
order statistic
kth smallest value in a statistical sample
kernel density estimation
estimator
Wilcoxon signed-rank test
non-parametric statistical hypothesis test used to compare two related samples to assess whether their population mean ranks differ
resampling
family of statistical methods based on sampling of available data
McNemar's test
statistical test used on paired nominal data
kendall tau rank correlation
type of statistic
Sign test
statistical test with teststatistic the number of signs of one type
Friedman test
non-parametric statistical test
Anderson–Darling test
statistical test of whether a given sample of data is drawn from a given probability distribution
median test
comparative statistical test
Wald–Wolfowitz runs test
nonparametric test of the null hypothesis that two samples have been taken from identical populations, based on whether the number of runs or sequences in an ordering is random
rank correlation
any of several statistics that measure an ordinal association
Cochran's Q test
Statistical test
geometric median
point minimizing the distance to other points
kernel
term in statistical analysis used to refer to a window function
Kuiper's test
statistical test
Empirical process
stochastic process that describes the proportion of objects in a system in a given state
Mantel test
Statistical test
Hodges–Lehmann estimator
robust and nonparametric estimator of a population's location parameter
permutation test
exact statistical hypothesis test
Cramér–von Mises criterion
statistical test
density estimation
construction of an estimate, based on observed data, of an unobservable underlying probability density function
U-statistic
In statistical theory, a U-statistic is a class of statistics defined as the average over the application of a given function applied to all tuples of a fixed size. The letter "U" stands for unbiased. In elementary statistics, U-statistics arise naturally in producing minimum-variance unbiased estimators.
semiparametric regression
regression models that combine parametric and nonparametric models
Kendall's W
rank correlation statistic used for inter-rater agreement
kernel smoother
statistical technique to estimate a real valued function as the weighted average of neighboring observed data
Transfer entropy
measure the amount of directed (time-asymmetric) transfer of information