Calculating Correlation Coefficient

MVLOGNRAND MultiVariate Lognormal random numbers with correlation.This function will generate multivariate lognormal random numbers with correlation.Often one would simulation a lognormal distribution by first simulating a normal and then taking the exponent of it.If you provide the correlation...

normxcorr2_general computes the normalized cross-correlation of matrices TEMPLATE and A. The resulting matrix C contains correlation coefficients and its values may range from -1.0 to 1.0.Limitations of normxcorr2:The documentation of normxcorr2 states that, "The matrix A must be larger than the...

It generates a stochastic field on a squared space. Samples are created by Latin hypercube sampling and the spatial correlation is performed by an algorithm based on Cholesky decomposition. Example inside.


Platforms: Matlab

Find Displacement between images by using cross-correlation.Easy:[dr,dc]=findoff(unreg,ref)


Platforms: Matlab

Implementation of Nicholas J. Higham's algorithm "Computing the Nearest Correlation Matrix - A Problem from Finance", 2002.http://eprints.ma.man.ac.uk/232/01/covered...S_ep2006_70.pdf


Platforms: Matlab

BINOMIAL Binomial coefficient.If the arguments are both non-negative integers with 0


Platforms: Matlab

The Gini coefficient is a measure of the inequality of a distribution (often used for income or wealth distributions). The Lorentz curve is a graphical representation of this inequality which is intimately related to the Gini coefficient. The program is straightforward to use. Please consult the...


Platforms: Matlab

CORRPERC performs a bootstrap (of size equal to n_iters) on correlation matrices of input variable Y and computes the percentiles corrsperc (according to input perc) of each correlation. The function also provides the standard deviation corrstd for each correlation.[corrsperc, corrstd] =...


Platforms: Matlab

AMI computes and plots average mutual information (ami) and correlation of univariate or bivariate time series for different values of time lag.USAGE: [amis corrs] = ami(xy,nBins,nLags)INPUT: xy: either univariate (x) or bivariate ([x y]) time series data. If bivariate time series are given then...


Platforms: Matlab

Plots dose/response data as mean responses to a dose with standard errors. Fits sigmoidal curve to data, calculating EC50 and the Hill Coefficient, then plots the sigmoid along with a label indicating the EC50.


Platforms: Matlab

Y = UPSIDECORRELATION(Y) returns the upside correlation for columns of variable Y.Y = UPSIDECORRELATION(Y, m) returns the upside correlation using vector m as expected value for columns of variable Y.====================================================Upside correlation is defined as the upside...


Platforms: Matlab

Y = DOWNSIDECORRELATION(Y) returns the downside correlation for columns of variable Y.Y = DOWNSIDECORRELATION(Y, m) returns the downside correlation using vector m as expected value for columns of variable Y.====================================================Downside correlation is defined as...


Platforms: Matlab

QT clustering algorithm as described in:Heyer, L. J., Kruglyak, S., Yooseph, S. (1999). Exploring expression data: Identification and analysis of coexpressed genes. Genome Research 9,...


Platforms: Matlab

r2 = rsquare(y,f) RSQUARE computes the coefficient of determination (R-square) value from actual data Y and model data F. INPUTS Y : Actual data F : Model fit OUTPUT R2 : Coefficient of determination EXAMPLE x = 0:0.1:10; y = 2.*x + 1 + randn(size(x)); p = polyfit(x,y,1); f = polyval(p,x); r2...


Platforms: Matlab

The STP SecondVirialCoefficient program numerically evaluates the second virial coefficient for the Lennard-Jones potential at various temperatures. The default is temperature range is 0.5 to 5. STP SecondVirialCoefficient is part of a suite of Open Source Physics programs that model aspects of...


Platforms: Mac

Powerful but easy-to-use graphing, curve fitting and calculating software. Graphs Cartesian (Y(x) and X(y)), polar and parametric functions, graphs of tables, equations (implicit functions), inequalities and slope fields. Up to 100 graphs in one window. Calculus features: regression analysis,...


Platforms: Windows

RTCalcExpress is a Delphi component for calculating expressions, entered in Run-Time. It can be installed into Delphi4, 5, 6, 7 and higher. Delivered with sources. The expressions can contain numbers, arithmetic ('+', '-', '*', '/') and logic ('=', '>', ' ', '>=', '<=', 'AND', 'OR') operators and...


Platforms: Windows

BioStat - user-friendly biology and medicine oriented statistical software. With BioStat 2007, one gets a robust suite of statistics tools and graphical analysis methods that are easily accessed though a simple and straightforward interface. While BioStat 2007 is aheavy-duty biology and medicine...


Platforms: Windows

WikSpeak is a tool that allows non-native English speakers to analyze the correlation between the pronunciation and spelling of English words. This program is a simple and fast graphic interface which can retrieve the phonetic transcription ( IPA ) and the pronunciation of any English word, while...


Platforms: *nix

Frink is a practical calculating tool and programming language designed to help us all to better understand the world around us, to help us get calculations right without getting bogged down in the mechanics, and to make a tool thats really useful in the real world. Perhaps youll get the best...


Platforms: *nix