# Rfast v1.7.3

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## Fast R Functions

A collection of fast (utility) functions for data analysis. Column- and row- wise means, medians, variances, minimums, maximums, many t, F and G-square tests, many regressions (normal, logistic, Poisson), Mahalanobis distance are some of the many fast functions.

## Functions in Rfast

 Name Description Column and rows-wise mean absolute deviations Column and row-wise mean absolute deviations Equality of objects Equality of objects Column and row-wise means of a matrix Column and row-wise means of a matrix MLE of the Beta distribution MLE of the Beta distribution Binary search algorithm Binary search algorithm Column and row-wise medians Column and row-wise medians Many multi-sample tests Many multi-sample tests Floyd-Warshall algorithm Floyd-Warshall algorithm for shortest paths in a directed graph Correlations Correlation between a vector and a set of variables Column and row-wise variances and standard deviations Column and row-wise variances and standard deviations of a matrix All k possible combinations from n elements All k possible combinations from n elements Count the frequency of a value Count the frequency of a value Covariance and correlation matrix Fast covariance and correlation matrix calculation Design Matrix Design Matrix Fitting a Dirichlet distribution via Newton-Rapshon Fitting a Dirichlet distribution via Newton-Rapshon Distance between vectors and a matrix Distance between vectors and a matrix Hash - Pair function Hash - Pair function Find the given value in a hash table Find the given value in a hash table Median of a vector Median of a vector Match Match Many univariate simple binary logistic regressions Many univariate simple binary logistic regressions Mahalanobis distance Mahalanobis distance Find element Find element Natural logarithm of the gamma function and its derivatives Sorting of the columns of a matrix Matrix with G-square tests of indepedence G-square test of indepdence G-square test of conditional indepdence G-square test of conditional indepdence The nth largest value of a vector The nth largest value of a vector Rfast-package Really fast R functions Many univariate simple linear regressions Many univariate simple linear regressions Order Order Permutation Permutation Many univariate simple poisson regressions Many univariate simple poisson regressions Multivariate Laplace random values simulation Multivariate Laplace random values simulation Multivariate normal and t random values simulation Multivariate normal and t random values simulation Many 2 sample t-tests Many 2 sample tests t-tests Many univariate generalised linear models Many univariate generalised linear regressions Sort a vector coresponding to another Sort MLE of the zero inflated and zero truncated Poisson MLE of the zero inflated and zero truncated Poisson Index of the columns of a data.frame which are factor variables Index of the columns of a data.frame which are factor variables Sorting of the columns of a matrix Sorting of the columns of a matrix Many multivariate simple linear regressions coefficients Many multivariate simple linear regressions coefficients minimum and maximum Minimum and maximum of a vector Row-wise minimum and maximum Row-wise minimum and maximum of a matrix. Sort and unique numbers Sort and unique Many score based GLM regressions Many score based GLM regressions Standardisation Standardisation Angular central Gaussian random values simulation Angular central Gaussian random values simulation Many 2 sample proportions tests Many 2 sample proportions tests Column and row-wise sums of a matrix Column and row-wise sums of a matrix Column and row-wise range of values of a matrix Column and row-wise range of values of a matrix. Column-wise minimum and maximum Column-wise minimum and maximum of a matrix Many simple linear regressions coefficients Simple linear regressions coefficients No Results!