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NCSS
Regression Analysis
Introduction
Regression analysis refers to a group of techniques for
studying the relationships among two or more variables. NCSS makes it
easy to run either a simple linear regression analysis or a complex
multiple regression analysis. You can perform a regression analysis with
modern graphical and numeric residual analysis. Major options include
multiple regression, stepwise regression, correlation matrix, residual
analysis, robust regression, all-possible regressions, response surface
regression, Poisson regression, Cox regression, ridge regression,
Weibull regression, and logistic regression.
Features
> All-possible
regressions
> Alpha level is flexible
> Beta coefficients
> Binary variables are automatic
> Biweight regression
> Bootstrap Confidence Intervals
> Categorical variables
> Coefficient of variation
> Condition number
> Confidence limits
> Cook’s D
> Correlations
> CovRatio
> Cp Statistic
> DFBetas
> Dffits
> Durbin Watson statistic
> Eigenvalues
> Eigenvectors
> F-ratios
> Hat diagonal
> Hierarchal model search
> Huber’s robust regression
> Interactions automatic
> LAV regression
> Logistic regression
> Multinomial logistic regression
> Multiple regression
> Normal probability plot
> Normality tests of residuals
> R-squared |
>
Regression coefficient
> Residual analysis and plots
> Response surface analysis
> Ridge regression
> Robust regression
> Rstudent
> Serial correlation plot
> Simple linear regression
> Spearman’s rank correlation
> Standard error of beta
> Standardized coefficient
> Stepwise regression
> Sum of squares
> T-test for beta=0
> Through the origin
> Tolerance level
> Variable selection
> Variance inflation factor
> Weighted regression
> Partial correlation
> Pearson’s correlation
> Poisson regression
> Power calculations
> Predicted values
> Prediction limits
> Predicts new observations
> Press statistic
> P.C. regression
> Proportional hazards
> R-bar squared |
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Download a 7-day trial copy of NCSS 2007
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Place an
order using our secure
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System Requirements
Runs under Windows Vista, XP, 2000, NT, ME, 98, 95 compatible Pentium-class computers with at least 32 MB of RAM. Requires 200 MB of hard disk space. Requires Adobe Reader® version 7 or later to use the NCSS, PASS, and GESS Help Systems. |
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Accuracy
We at NCSS have put a
great deal of effort into finding the most
accurate algorithms possible. The programs have
been tested and verified over and over, both by
us and by our customers. Each routine has been
verified against textbooks, journal articles,
and, where possible, other software. NCSS is one
of the most accurate statistical analysis
programs available. NCSS calculates with
seventeen-digit, double-precision accuracy. |
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Guarantee
If you are not completely
satisfied with an NCSS product during the first
30 days for any reason, return the program for a
full, prompt refund (excluding shipping)--no
questions asked. |
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