Indices Maths

logindpostgres is a script that reads SQL select statements from PostgreSQL logs and generates all the indices to optimize the database for each request. logindpostgres has been tested on 1.2 GB of logs.. Get Postgres 8.1 Intelligent Index generator at SourceForge.net. Fast, secure and free... Platforms: *nix

Calculates three indices of factorial invariance: the coefficient of congruence, a chi-square goodness of fit test, and Cattell's Salient Variable Similarity Index. Platforms: Mac

A utility for reordering files in a given folder by prefixing their filenames with appropriately formatted indices. To use the utility first find the folder by clicking the button labelled 'Choose Folder...' to navigate and select the folder. The names of all files in this folder will appear in... Platforms: Mac

Chewdoku chewdoku sudoku Sudoku solve make generate compile hardest easy difficulty simple advanced very numbers download free game puzzle methods challenge solutions symmetry unique answers save print blank grid possibles calculate squares rows columns blocks lines most Super X gives hints xwing... Platforms: Windows, MS-DOS, Netware, Other

The Universal Database Converter transfers complete database data structures, data repositories, and indices from one database system to another. Table relationships with primary and foreign keys are also taken into account and transferred into the target system. Thus the Universal Database... Platforms: Windows

blat(mat) is a Braille to print translator for maths. It takes a Spanish Six-dot Mathematical Braille (not Nemeth Code) text and converts it to an HTML file ready to be translated into XHTML+MathML by ASCIIMathML (javascript). Platforms: Windows, Mac, Linux

Nucular Archiving System for creating full text indices for fielded data. Python API, web, and command line interfaces. Fast. Very light weight. Concurrent read/writes with no possible locking issues. No server process. Proximity. Facets. Funny name. Platforms: Windows, Mac, BSD, Linux

The iStocks Widget displays quotes and historical charts for international stocks, indices, currencies, futures and mutual funds. It uses the symbols from Yahoo Finance. Localization available for German, French and Italian. What's new in this version: Sorting by performance; multiple instance... Platforms: Mac

Sequenzetto is a utility for reordering files in a given folder by prefixing their filenames with appropriately formatted indices. To use the utility first find the folder by clicking the button labelled "Choose Folder..." to navigate and sele Platforms: Mac

This script has the next actions: finds the set of elements in input_array that are closest to elements in target_array and records the indices of the elements in target_array that are within tolerance, tol, of their closest match. Also it records the indices of the elements in target_array... Platforms: Windows, Mac, *nix, Python, BSD Solaris

In many filtering problems one receive not just a single measurement, but a set of measurements at each time step. The most straightforward way of dealing with such variable cardinality entities in Matlab is to store them in cell arrays, but for various reasons the user may not want that. The... Platforms: Matlab

The function implement the 1D Walash Transform which can be used in signal processing,pattern recognition and Genetic algorithms. The Formula of 1D Walsh Transform is defined as : N-1 q-1 ---- -- 1 | | b[i](m)*b[q-1-i](u) W(u) = --- / f(m)| | (-1) ,u = 0,...,N-1 N ---- | | m=0 i=0 where for... Platforms: Matlab

% also incorrectly known as Shannon-Weaver,is one of% several diversity indices used to measure versity% in categorical data. It is simply the Information% entropy of the distribution, treating species as% symbols and their relative population sizes as the% probability.% The advantage of this... Platforms: Matlab

This function treats a matrix as a column-wise set of signals and circularly shifts each column so that it aligns with the first column of data so that the inner product between those columns is maximized with respect to all other shifts. USAGE:[dataout,lagout]=xcorAlign(data);If only 1 output is... Platforms: Matlab

Clipping is the main program. There are three inputs: y is the time record, threshhold_value is the clipping threshhold, and threshhold_samples is the number of consecutive data points exceeding the threshhold_value to indicate that the data is clipped.The program returns two cells arrays... Platforms: Matlab

Most PID tuning rules are based on first-order plus time delay assumption of the plant hence cannot ensure the best control performance. Using mordern optimization techniques, it is possible to tune a PID controller based on the actual transfer function of the plant to optimize the closed-loop... Platforms: Matlab

D = DISTMAT(X,Y) for matrices X and Y returns the distance matrix where the (i,j)th entry is the d-norm distance between the ith and jth row of X and Y respectively.DISTMAT(X,Y,d) computes a specific d-norm distance. Default=2[D,XI,YI]=DISTMAT(X,Y,d,var) gives the indices of the sorted values of... Platforms: Matlab

Function to solve the Minimum Perfect Matching on non-biparite graphs problem using Integer linear programming.Returns vector of matched indices and cost of the match. Requires symmetric adjacent matrix of even rank. function [ indices, cost ] = min_perfect_matching( G )Function _requires_... Platforms: Matlab

The characterisation of the downsampler block can be done by the formula:y(n)=x(nM)Syntax:[y ny]=downsampler(x,n,M)x is an input sequence over indices specified by n.L is the downsampling rate.It ignores (M-1) samples between kth sample and (k+M)th sample.y is the output sequence over indices... Platforms: Matlab

This program gets the stock symbols of a user-defined index (NASDAQ, NYSE, AMEX, OTCBB, LSE) and/or sector. The data is retrieved from http://www.eoddata.com/ and from Yahoo Finance.For example: - get_stock_symbols('NASDAQ') : gets all stock symbols from NASDAQ -... Platforms: Matlab