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Statistics - Econometrics - Forecasting @font-face {font-family: "ASENINE"; src: url(ASENINE.ttf)}a:link{ text-decoration: none; color: #082D71}a:visited{ text-decoration: none; color: #003399}a:hover{ text-decoration: underline }h1 { color:#082D71; font-size:12pt; font-family:arial; font-style:bold; }h5{color:#082D71;font-size:12pt;font-family:arial;font-style:bold;}body, p, table, tr, td{font-size:10pt;font-family:verdana,arial;}  Scientific Resources Home
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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:
Time Series Analysis and Its Applications: With R Examples written by Robert H. Shumway & David S. Stoffer.
The Basics of S-Plus written by Andreas Krause & Melvin Olson.
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
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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!
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