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Excel Add-in for DB2 1.7
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Code 1-20 of 20   






GAUSSian REALIZation of a random variable with standard deviation sigma and correlation length lambda



This function segments (clusters) an image into object classes, and estimates and corrects for slow varying illumination artifacts. Estimates and corrects for bias field in 3D MRI, streak artifacts in CT, and illumination artifacts in color...



WBIN(X,Y,E,DX) returns the weighted mean value of the elements in X,Y within a bin of size DX.
X,Y,E are vectors with an equal number of elements..
DX is a scalar which specifies the desired binning interval.

Input X,Y,E,DX...



This function calculates the probability under the normal distribution curve, plots the graph and the area calculated.

Normaldistribution

calculating the area under a normal distribution curve
from -ve infinity upto...



function y = laprnd(m, n, mu, sigma)
%LAPRND generate i.i.d. laplacian random number drawn from laplacian distribution
% with mean mu and standard deviation sigma.
% mu : mean
% sigma : standard deviation
% [m, n] : the...



IMGAUSSIAN filters an 1D, 2D color/greyscale or 3D image with a Gaussian filter.

Instead of using a multidimensional Gaussian kernel, it uses the fact that a Gaussian kernel can be separated in 1D kernels.

By the default the...



Using the Cholesky decomposition, it generates n iterations of multivariate Gaussian random variables for a given mean vector (mu) and variance-covariance matrix (sigma).

mvgrnd(mu,sigma,n)



Within a sigma range separable filters with integer parameters are sought. The filters have a sum which is an integer power of 2 in order to divide the filter result by shifting the bits.



The output figures will show effects of the number of series terms and use of the Lanczos sigma factors to smooth the Gibbs oscillations.



Included in the first line of the script is a sample data set. The script will compute basic statistics on this data set:

mean
1-sigma (standard deviation)
median
first quartile (25th percentile)
second quartile...



The Lorenz attractor, named for Edward N. Lorenz, is an example of a non-linear dynamic system corresponding to the long-term behavior of the Lorenz oscillator.

The Lorenz oscillator is a 3-dimensional dynamical system that exhibits...



randgen(mu,mu1,mu2,cov1,cov2,cov3) = Random generation of Gaussian Samples in d-dimensions where d = 2
mu, mu1, mu2 = (x,y) coordinates(means) that the gaussian samples are centered around. cov1, cov2, cov3 are the covariance matrices and...



This widget uses php-gd to generate a Sigma BC906 bike computer to show your bike statistics. The statistics can be entered by using the dashboard.

Installation :

Extract the zip archive in your WordPress plugins folder...



[VINDX FRACDIM V_SIGMA COVERSIZE] = varIndx(LOW,HIGH)

LOW is a column vector of the lowest price in the bar (second, minute,
etc).
HIGH is a column vector of the highest price in the bar.

VINDX is the variation...



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...



This code optimises the parameters for the term structure of volatility (TSOV) applied to historical forward curves - see discussion in Harris in reference 1 below.

TSOVs avaible are:
TermType - 1 = sigma = A exp (-CT)
- 2...



Given a nonnegative integer n, tau(n) is the Ramanujan tau function of n, defined as the coefficient of x^n in the Taylor expansion of
x * prod_{k>=0}(1 - x^k)^24. This is an integer function with fascinating number theoretic properties....



Lyapunov exponent calcullation for ODE-system. The alogrithm employed in this m-file for determining Lyapunov exponents was proposed in A. Wolf, J. B. Swift, H. L. Swinney, and J. A. Vastano, "Determining Lyapunov Exponents from a Time...



Creates a number of samples from a specified number of dimensions and centers them around a given mean, and within a given covariance range. You might not find it very useful, but hey, I need something to do this so why not.

To use:



Sigma Grid is a Ajax-enabled JavaScript grid control that provides professional solution for representing and editing tabular data on the web.
Pure javascript codes, Seamless Integration with any server side solution, such as j2ee, .net,...