Xycoon logo
Scientific Resources
Home    Site Map    Site Search    Xycoon College    Free Online Software    
horizontal divider
vertical whitespace

 

Statistics - Econometrics - Forecasting

[Home] [Resources] [Links] [Xycoon Exchange]

Welcome to our popular scientific resources website about Descriptive Statistics, Continuous Statistical Distributions, Hypothesis Testing, Econometrics, and Time Series Analysis (Forecasting). Best of all: it is all free of charge!


:: Spotlight :: we recommend these excellent books about S-Plus and R:

The Formulae section contains a whole series of widely used statistical formulae about descriptive statistical measures and continuous distributions.

Check any of these widely used descriptive statistics:

central tendency (mean, median, root mean square, midmean) with free calculator
concentration (entropy, exponential index, Herfindahl, variation coefficient, Gini coefficient, Lorenz curve) with free calculator
box plots (hinge, midspread, interquartile range, whiskers, fences, outliers, extremes, outermost)
density trace (kernel, distance, density)
moments (general, non centered, centered) with free calculator
correlations (Pearson, covariance, determination coefficient) with free calculator
partial correlations (Pearson product moment partial correlation) with free calculator
quartiles (weighted average, empirical distribution, closest observation, TrueBasic®, Excel®) with free calculator
simple linear regression (general linear model, mean and variances, covariance, correlation, least squares estimation, parameters, response, significance, determination coefficient, ANOVA, residuals, autocorrelation, model selection, model performance) with free calculator
histograms (mean, standard deviation, range, interval size, number of intervals, goodness of fit)
skewness (Pearson, Yule, Beta, Gamma) with free calculator
kurtosis (Beta, Gamma) with free calculator
rank order correlation (corrected, non-corrected) with free calculator
variability (range, variance, standard deviation, variation, mean squared error, Herfindahl, mean absolute deviation, quartiles, Gini mean difference, Leik's D, dispersion, diversity, mean squared deviation, mean absolute deviation) with free calculator
Check out the online applications with various free statistics calculators: correlation, partial correlation, rank correlation, simple regression, skewness, kurtosis, moments, quartiles, percentiles, concentration, variability, central tendency.

Detailed descriptions about the following continuous statistical distributions are available:
Beta | Inverted Beta | Cauchy 1 | Cauchy (2 parameters) | Chi | Chi Square (1 parameter) | Chi Square (2 parameters) | Erlang | Exponential | Fisher F | Gamma | Inverted Gamma | Gumbel | Laplace | Logistic | Lognormal | Normal | Pareto | Power | Rayleigh | r-Distribution | Rectangular (Uniform) | Student t | Triangular | Weibull

An introduction into Statistical Hypothesis Testing is available:
Introduction | Testing the Mean (known Variance) | Variance Testing | Testing the Mean (unknown Variance) | Testing the Population Proportion

The Econometrics section contains chapters about Econometrics (see also free calculator), Regression Extensions, Mathematical Models, and Box-Jenkins Time Series Analysis (Forecasting).

These are the contents of our Online Econometrics Textbook:
Introduction to Econometrics (including matrix algebra)
Linear Regression Techniques (Least Squares and Maximum Likelihood)
Regression Extensions (autocorrelation, heteroskedasticity, multicollinearity, nonlinearity, simultaneous equations, misspecification)
Mathematical Models in Econometrics

 

Check out the (Box-Jenkins) Time Series Analysis & Forecasting section of our website (see also free calculator):
ARIMA Identification
Univariate Stochastic ARIMA Model Estimation
Univariate Stochastic ARIMA Model Checking
Univariate Stochastic ARIMA Model Forecasting
Transfer Function-Noise Models
Multiple Time Series Models

 

Suggestions

We would like to hear from you. Please, send us suggestions about how we can improve this website to make it more enjoyable (suggestions@xycoon.com). If you want to contribute to our scientific resources section, send us an e-mail to contributions@xycoon.com. The Xycoon team thanks all visitors for the many e-mails with feedback, suggestions, and support!

vertical whitespace




Home
Resources
Links
Xycoon Exchange
horizontal divider
NEWS FEED from BBC News : Statistical Research
Half city's youth 'take cocaine'More than 50% of young people in Liverpool admit to having taken cocaine, a new report claims.
Paediatricians' GMC case delayedThe General Medical Council wins a delay in an investigation into the work of paediatrician David Southall allowing it to assess new evidence.
Adults with autism to be auditedFor the first time the government is to calculate the number of adults with autism in England.
Economic data 'credibility boost'Scotland could get an international "credibility boost" by introducing a new measure of Gross Domestic Product, a report says.
Cod fall may speed 'toxic tide'Declining fish stocks could be partially responsible for algal blooms in parts of the oceans, researchers find.
Green movement forgets its politicsWhy climate campaigners should stop trying to persuade people into lifestyle changes and start dealing with the politics.
Taking the pulse of the economyAt times of economic volatility, sentiment surveys are headline news. But is it really possible to measure the feel-good factor accurately?
Targets 'drive out head teachers'School leaders are being driven out of the profession by "pernicious systems of accountability", head teachers say.
Poland entices its workers homeThere are signs that many Poles who migrated for better paid jobs abroad have gone home. Two returnees tell their stories.
India warned over heart diseaseIndia will account for 60% of heart disease cases worldwide within two years, says a new research.
Recorded crime decreases by 12%Recorded crime in England and Wales fell by 12% in the last three months of 2007, Home Office figures show.
What if we all walked to work?It's Walk to Work Day, but what would Britain be like if we all passed up road and rail for the humble pavement? Steve Tomkins ponders the potential consequences of letting our legs do all the work.
Probation Service 'faces crisis'The Probation Service faces a crisis of shrinking budgets and a shortage of frontline staff, says a new report.
Scottish growth outperforming UKLatest Scottish government figures show the Scottish economy outperforming the rest of the UK in Q4 2007.
Rural towns new 'creative hubs'Rural towns are the fastest growing centres of creativity, according to a new business league table.
Breast checks 'benefit over-70s'Women should be screened for breast cancer up to the age of 75, a study of over 860,000 women suggests.
Younger children disciplined lessAcademics say their research confirms the belief that parents are often tougher on their oldest children.
Ageing issue 'ticking time bomb'A new group is set up to study the financial implications of the UK population living longer.
'Drop' in drink-fuelled violenceA study suggests community projects to cut binge drinking have led to a 10% fall in violent crime in Glasgow.
China 'now top carbon polluter'China has already overtaken the US as the world's biggest polluter, according to a new report by US scientists.
horizontal divider

© 2000-2006 - Office for Research, Development, and Education (called ORDE) - All rights reserved. This website is published by ORDE and owned by Resa R&D. This includes: html content, graphical illustrations (gif, jpg, and png files), computer software, online or electronic documentation, associated media, and printed materials. All Photographs (jpg files) are the property of Corel Corporation, Microsoft and their licensors. ORDE has acquired a non-transferable license to use these pictures in this website.
The free use of the scientific content in this website is granted for non commercial use only. In any case, the source (url) should always be clearly displayed. Under no circumstances are you allowed to reproduce, copy or redistribute the design, layout, or any content of this website (for commercial use) including any materials contained herein without the express written permission of ORDE.

Information provided on this web site is provided "AS IS" without warranty of any kind, either express or implied, including, without limitation, warranties of merchantability, fitness for a particular purpose, and noninfringement. ORDE uses reasonable efforts to include accurate and timely information and periodically updates the information without notice. However, ORDE makes no warranties or representations as to the accuracy or completeness of such information, and it assumes no liability or responsibility for errors or omissions in the content of this web site. Your use of this web site is AT YOUR OWN RISK. Under no circumstances and under no legal theory shall ORDE be liable to you or any other person for any direct, indirect, special, incidental, exemplary, or consequential damages arising from your access to, or use of, this web site.

Contributions and Scientific Research: Prof. Dr. E. Borghers, Prof. Dr. P. Wessa
Please, cite this website when used in publications: Xycoon (or Authors), Statistics - Econometrics - Forecasting (Title), Office for Research Development and Education (Publisher), http://www.xycoon.com/ (URL), (access or printout date).
Facilities, development, and design: Office for Research, Development, and Education

Comments, Feedback, Bugs, Errors | Privacy Policy Web Awards

This website is kindly sponsored by: Bandwidth Control | Time Series, Statistics Resources, and Statistics Software | Computer schools and technology degrees | Konrad Elektronik Versand