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- """
- ==========================================
- Statistical functions (:mod:`scipy.stats`)
- ==========================================
- .. module:: scipy.stats
- This module contains a large number of probability distributions as
- well as a growing library of statistical functions.
- Each univariate distribution is an instance of a subclass of `rv_continuous`
- (`rv_discrete` for discrete distributions):
- .. autosummary::
- :toctree: generated/
- rv_continuous
- rv_discrete
- rv_histogram
- Continuous distributions
- ========================
- .. autosummary::
- :toctree: generated/
- alpha -- Alpha
- anglit -- Anglit
- arcsine -- Arcsine
- argus -- Argus
- beta -- Beta
- betaprime -- Beta Prime
- bradford -- Bradford
- burr -- Burr (Type III)
- burr12 -- Burr (Type XII)
- cauchy -- Cauchy
- chi -- Chi
- chi2 -- Chi-squared
- cosine -- Cosine
- crystalball -- Crystalball
- dgamma -- Double Gamma
- dweibull -- Double Weibull
- erlang -- Erlang
- expon -- Exponential
- exponnorm -- Exponentially Modified Normal
- exponweib -- Exponentiated Weibull
- exponpow -- Exponential Power
- f -- F (Snecdor F)
- fatiguelife -- Fatigue Life (Birnbaum-Saunders)
- fisk -- Fisk
- foldcauchy -- Folded Cauchy
- foldnorm -- Folded Normal
- frechet_r -- Deprecated. Alias for weibull_min
- frechet_l -- Deprecated. Alias for weibull_max
- genlogistic -- Generalized Logistic
- gennorm -- Generalized normal
- genpareto -- Generalized Pareto
- genexpon -- Generalized Exponential
- genextreme -- Generalized Extreme Value
- gausshyper -- Gauss Hypergeometric
- gamma -- Gamma
- gengamma -- Generalized gamma
- genhalflogistic -- Generalized Half Logistic
- gilbrat -- Gilbrat
- gompertz -- Gompertz (Truncated Gumbel)
- gumbel_r -- Right Sided Gumbel, Log-Weibull, Fisher-Tippett, Extreme Value Type I
- gumbel_l -- Left Sided Gumbel, etc.
- halfcauchy -- Half Cauchy
- halflogistic -- Half Logistic
- halfnorm -- Half Normal
- halfgennorm -- Generalized Half Normal
- hypsecant -- Hyperbolic Secant
- invgamma -- Inverse Gamma
- invgauss -- Inverse Gaussian
- invweibull -- Inverse Weibull
- johnsonsb -- Johnson SB
- johnsonsu -- Johnson SU
- kappa4 -- Kappa 4 parameter
- kappa3 -- Kappa 3 parameter
- ksone -- Kolmogorov-Smirnov one-sided (no stats)
- kstwobign -- Kolmogorov-Smirnov two-sided test for Large N (no stats)
- laplace -- Laplace
- levy -- Levy
- levy_l
- levy_stable
- logistic -- Logistic
- loggamma -- Log-Gamma
- loglaplace -- Log-Laplace (Log Double Exponential)
- lognorm -- Log-Normal
- lomax -- Lomax (Pareto of the second kind)
- maxwell -- Maxwell
- mielke -- Mielke's Beta-Kappa
- moyal -- Moyal
- nakagami -- Nakagami
- ncx2 -- Non-central chi-squared
- ncf -- Non-central F
- nct -- Non-central Student's T
- norm -- Normal (Gaussian)
- norminvgauss -- Normal Inverse Gaussian
- pareto -- Pareto
- pearson3 -- Pearson type III
- powerlaw -- Power-function
- powerlognorm -- Power log normal
- powernorm -- Power normal
- rdist -- R-distribution
- reciprocal -- Reciprocal
- rayleigh -- Rayleigh
- rice -- Rice
- recipinvgauss -- Reciprocal Inverse Gaussian
- semicircular -- Semicircular
- skewnorm -- Skew normal
- t -- Student's T
- trapz -- Trapezoidal
- triang -- Triangular
- truncexpon -- Truncated Exponential
- truncnorm -- Truncated Normal
- tukeylambda -- Tukey-Lambda
- uniform -- Uniform
- vonmises -- Von-Mises (Circular)
- vonmises_line -- Von-Mises (Line)
- wald -- Wald
- weibull_min -- Minimum Weibull (see Frechet)
- weibull_max -- Maximum Weibull (see Frechet)
- wrapcauchy -- Wrapped Cauchy
- Multivariate distributions
- ==========================
- .. autosummary::
- :toctree: generated/
- multivariate_normal -- Multivariate normal distribution
- matrix_normal -- Matrix normal distribution
- dirichlet -- Dirichlet
- wishart -- Wishart
- invwishart -- Inverse Wishart
- multinomial -- Multinomial distribution
- special_ortho_group -- SO(N) group
- ortho_group -- O(N) group
- unitary_group -- U(N) group
- random_correlation -- random correlation matrices
- Discrete distributions
- ======================
- .. autosummary::
- :toctree: generated/
- bernoulli -- Bernoulli
- binom -- Binomial
- boltzmann -- Boltzmann (Truncated Discrete Exponential)
- dlaplace -- Discrete Laplacian
- geom -- Geometric
- hypergeom -- Hypergeometric
- logser -- Logarithmic (Log-Series, Series)
- nbinom -- Negative Binomial
- planck -- Planck (Discrete Exponential)
- poisson -- Poisson
- randint -- Discrete Uniform
- skellam -- Skellam
- zipf -- Zipf
- yulesimon -- Yule-Simon
- An overview of statistical functions is given below.
- Several of these functions have a similar version in
- `scipy.stats.mstats` which work for masked arrays.
- Summary statistics
- ==================
- .. autosummary::
- :toctree: generated/
- describe -- Descriptive statistics
- gmean -- Geometric mean
- hmean -- Harmonic mean
- kurtosis -- Fisher or Pearson kurtosis
- mode -- Modal value
- moment -- Central moment
- skew -- Skewness
- kstat --
- kstatvar --
- tmean -- Truncated arithmetic mean
- tvar -- Truncated variance
- tmin --
- tmax --
- tstd --
- tsem --
- variation -- Coefficient of variation
- find_repeats
- trim_mean
- iqr
- sem
- bayes_mvs
- mvsdist
- entropy
- Frequency statistics
- ====================
- .. autosummary::
- :toctree: generated/
- cumfreq
- itemfreq
- percentileofscore
- scoreatpercentile
- relfreq
- .. autosummary::
- :toctree: generated/
- binned_statistic -- Compute a binned statistic for a set of data.
- binned_statistic_2d -- Compute a 2-D binned statistic for a set of data.
- binned_statistic_dd -- Compute a d-D binned statistic for a set of data.
- Correlation functions
- =====================
- .. autosummary::
- :toctree: generated/
- f_oneway
- pearsonr
- spearmanr
- pointbiserialr
- kendalltau
- weightedtau
- linregress
- siegelslopes
- theilslopes
- Statistical tests
- =================
- .. autosummary::
- :toctree: generated/
- ttest_1samp
- ttest_ind
- ttest_ind_from_stats
- ttest_rel
- kstest
- chisquare
- power_divergence
- ks_2samp
- mannwhitneyu
- tiecorrect
- rankdata
- ranksums
- wilcoxon
- kruskal
- friedmanchisquare
- brunnermunzel
- combine_pvalues
- jarque_bera
- .. autosummary::
- :toctree: generated/
- ansari
- bartlett
- levene
- shapiro
- anderson
- anderson_ksamp
- binom_test
- fligner
- median_test
- mood
- skewtest
- kurtosistest
- normaltest
- Transformations
- ===============
- .. autosummary::
- :toctree: generated/
- boxcox
- boxcox_normmax
- boxcox_llf
- yeojohnson
- yeojohnson_normmax
- yeojohnson_llf
- obrientransform
- sigmaclip
- trimboth
- trim1
- zmap
- zscore
- Statistical distances
- =====================
- .. autosummary::
- :toctree: generated/
- wasserstein_distance
- energy_distance
- Random variate generation
- =========================
- .. autosummary::
- :toctree: generated/
- rvs_ratio_uniforms
- Circular statistical functions
- ==============================
- .. autosummary::
- :toctree: generated/
- circmean
- circvar
- circstd
- Contingency table functions
- ===========================
- .. autosummary::
- :toctree: generated/
- chi2_contingency
- contingency.expected_freq
- contingency.margins
- fisher_exact
- Plot-tests
- ==========
- .. autosummary::
- :toctree: generated/
- ppcc_max
- ppcc_plot
- probplot
- boxcox_normplot
- yeojohnson_normplot
- Masked statistics functions
- ===========================
- .. toctree::
- stats.mstats
- Univariate and multivariate kernel density estimation (:mod:`scipy.stats.kde`)
- ==============================================================================
- .. autosummary::
- :toctree: generated/
- gaussian_kde
- For many more stat related functions install the software R and the
- interface package rpy.
- """
- from __future__ import division, print_function, absolute_import
- from .stats import *
- from .distributions import *
- from .morestats import *
- from ._binned_statistic import *
- from .kde import gaussian_kde
- from . import mstats
- from .contingency import chi2_contingency
- from ._multivariate import *
- __all__ = [s for s in dir() if not s.startswith("_")] # Remove dunders.
- from scipy._lib._testutils import PytestTester
- test = PytestTester(__name__)
- del PytestTester
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