Variance Formula

LLR_DEMOD LLR Demodulator H = LLR_DEMOD_MEX(CONSTELLATION, MAPPING, METHOD) constructs a LLR demodulator object H for a given constellation, mapping and noise variance. The vectors CONSTELLATION and MAPPING are usually generated by using MATLAB Modem Modulation Modem. and contain the complex or...

The correlation function calculated from one realization of an ensemble is inherently flawed since the expectation operation does not come into play. Hence it is important to have an idea of the variance in the correlation function.

Suppose that you have a signal Y (Y can be a time series, a parametric surface or a volumetric data series) corrupted by a Gaussian noise with unknown variance. It is often of interest to know more about this variance. EVAR(Y) thus returns an estimated variance of the additive noise.EVAR provides...


Platforms: Matlab

NGRAV computes the normal gravity value (in m/sec^2 unit) of a point with the geodetic latitude defined in GRS80 ellipsoid,which is the more up-to-date and internationally adopted reference ellipsoid.The normal gravity value is used for the computation of the gravity anomaly which removes the...


Platforms: Matlab

Semi variance method and scaled windowed variance method for fractal time series analysis.Referernce: Evaluating scaled windowed variance methods for estimating the Hurst coefficient of time series Physica A: Statistical and Theoretical PhysicsVolume 241, Issues 3-4, 15 July 1997, Pages 606-626


Platforms: Matlab

Performs the nonparametric squared ranks test on quality of variance for two samples. Based on Conover (1981), 'Practical Nonparametric Statistics', pp. 239-248.Uses normal approximation for for m >10 (MATLAB fxn norminv or table if norminv unavailable). Uses normal approximation if ties exist....


Platforms: Matlab

These files are an adaptation of the ANOVA variance component estimators to be used in the analysis of genetic data, specifically Cockerham's 1969 Theta. Formulae were adapted from Sokal and Rohlf's 1995 Biometry, and test files from the book are given as reference.


Platforms: Matlab

This m-file calculates the blocking or loss probability of a network node or link using the Erlang B loss formula. It does not use the formula directly (which doesn't work with high numbers) but an iterative algorithm. Tested with MATLAB R13 and Octave.


Platforms: Matlab

The program is simple to use and it will help to find the call/put option price of Dividend or non dividend paying stocks using Black Scholes Formula.Input: Initial stock price(S0), Strike price(K), Interest rate per annum(r), Expiry time in year (T), Volatility (sigma) then it will calculate...


Platforms: Matlab

Y = UPSIDEVARIANCE(Y) returns the upside variance for columns of variable Y.Y = UPSIDEVARIANCE(Y, m) returns the upside variance using vector m as expected value for columns of variable Y.====================================================Upside variance is defined as the average sum of squared...


Platforms: Matlab

Y = DOWNSIDEVARIANCE(Y) returns the downside variance for columns of variable Y.Y = DOWNSIDEVARIANCE(Y, m) returns the downside variance using vector m as expected value for columns of variable Y.===================================================Downside variance is defined as the average sum of...


Platforms: Matlab

Rediscover your identity and prove your innocence in The Cross Formula, an incredible Adventure game! After waking up in a roadside motel with no recollection of who you are, you learn that the police suspect you of murder! Solve puzzles, interact with quirky characters, and look for clues as you...


Platforms: Mac

A hotkey or a click on a tray icon starts the calculation dialog for your math formula. The dialog is generated out of the formula. Just enter the actual parameters and CalcExpress displays the result; it displays a small graph when a range is input; it displays a table when a two ranges are...


Platforms: Windows

EasyFormula is a development component to create dynamic formula. It allows end user to create their own formula,and evaluate it at runtime, so users are able to decide on how to process and present data instead of hardcoded by programmer. Features: (a)Create formula and evaluate at runtime...


Platforms: Windows

JEP is a Java library for parsing and evaluating mathematical expressions. With this package you can allow your users to enter an arbitrary formula as a string, and instantly evaluate it. JEP supports user defined variables, constants, and functions. A number of common mathematical functions and...


Platforms: OS/2, Windows, Mac, *nix

All F1 fans, followers of the most important car racing category, are welcome, because now the Formula 1 2008 Official screensaver is available with spectacular images of the Grand Prix.The 2008 season promises to be emotional and exciting thanks to some changes, like no driver aids, nor traction...


Platforms: Windows

Jep is a Java library for parsing and evaluating mathematical expressions. With this package you can allow your users to enter an arbitrary formula as a string, and instantly evaluate it. Jep supports user defined variables, constants, and functions. A number of common mathematical functions and...


Platforms: OS/2, Windows, Mac, *nix

Microsoft Excel tool that evaluates the contents of two cells and gives a probability of a match; a value between 0 and 1 is returned. Easy to use custom function works just like any other Excel formula. Works with Excel 2000 2002 2000 2002 2003 2007.


Platforms: Windows

Pytexipng provides a LaTeX formula converter to png images using a nice GTK gui. Pytexipng can convert a LaTeX formula into a png image file that can be used on any WYSIWYG word processor application as OpenOffice.org Writer, Abiword or KWord.. Get pytexipng at SourceForge.net. Fast, secure and...


Platforms: *nix

Aspose.Cells is a .NET component for spreadsheet reporting without using Microsoft Excel. It supports robust formula calculation engine, pivot tables, VBA, workbook encryption, named ranges, spreadsheet formatting, drawing objects like images, OLE objects and importing or creating charts. You can...


Platforms: Windows, Java