*Improve the accuracy of predictions with advanced regression procedures*

IBM® SPSS® Regression software enables you to predict categorical outcomes and apply a range of nonlinear regression procedures. You can apply the procedures to business and analysis projects where ordinary regression techniques are limiting or inappropriate—such as studying consumer buying habits, responses to treatments or analyzing credit risk.

With SPSS Regression software, you can expand the capabilities of IBM SPSS Statistics Base for the data analysis stage in the analytical process.

**Predict categorical outcomes**with more than two categories using multinomial logistic regression (MLR).**Easily classify your data**into groups using binary logistic regression.**Estimate parameters of nonlinear models**using nonlinear regression (NLR) and constrained nonlinear regression (CNLR).**Meet statistical assumptions**using weighted least squares and two-stage least squares.**Evaluate the value of stimuli**using probit analysis.

## SPSS Regression Screenshots

**Predict categorical outcomes**

- Using MLR, regress a categorical dependent variable with more than two categories on a set of independent variables. This helps you accurately predict group membership within key groups.
- Use stepwise functionality, including forward entry, backward elimination, forward stepwise or backward stepwise, to find the best predictor.
- For a large number of predictors, use Score and Wald methods to help you quickly reach results.
- Assess your model fit using Akaike information criterion (AIC) and Bayesian information criterion (BIC).

**Easily classify your data**

- Using binary logistic regression, build models in which the dependent variable is dichotomous; for example, buy versus not buy, pay versus default, graduate versus not graduate.
- Predict the probability of events such as solicitation responses or program participation.
- Select variables using six types of stepwise methods. This includes forward (select the strongest variables until there are no more significant predictors in the data set) and backward (at each step, remove the least significant predictor in the data set).
- Set inclusion or exclusion criteria.

**Estimate parameters of nonlinear models**

- Estimate nonlinear equations using NLR for unconstrained problems and CNLR for both constrained and unconstrained problems.
- Using NLR, estimate models with arbitrary relationships between independent and dependent variables using iterative estimation algorithms.
- With CNLR, use linear and nonlinear constraints on any combination of parameters.
- Estimate parameters by minimizing any smooth loss function (objective function), and compute bootstrap estimates of parameter standard errors and correlations.

**Meet statistical assumptions**

- If the spread of residuals is not constant, use weighted least squares to estimate the model. For example, when predicting stock values, stocks with higher share values fluctuate more than low-value shares.
- Use two-stage least squares to estimate the dependent variable when the independent variables are correlated with regression error terms. This allows you to control for correlations between predictor variables and error terms.

**Evaluate the value of stimuli**

- Use probit analysis to estimate the effects of one or more independent variables on a categorical dependent variable.
- Evaluate the value of stimuli using a logit or probit transformation of the proportion responding.

## SPSS Regression resources

- Data sheet: IBM SPSS Regression (534KB)
Learn how to apply more sophisticated models to your data using a wide range of nonlinear regression procedures.

- Trial software: IBM SPSS Statistics Desktop
Identify your best customers, forecast future trends, and perform advanced analysis.

- White paper: Seven Reasons You Need Predictive Analytics Today
Learn about the seven strategic objectives that can be attained by employing predictive analytics.

## Buy SPSS Regression

**Improve the accuracy of predictions with advanced regression procedures**

IBM Software Subscription and Support is included in the product price for the first year.

Download software online after purchase - no shipping costs!

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- SPSS Advanced Statistics
- SPSS Amos
- SPSS Bootstrapping
- SPSS Categories
- SPSS Complex Samples
- SPSS Conjoint
- SPSS Custom Tables
- SPSS Data Preparation
- SPSS Decision Trees
- SPSS Direct Marketing
- SPSS Exact Tests
- SPSS Forecasting
- SPSS Missing Values
- SPSS Neural Networks
- SPSS Regression
- SPSS SamplePower
- SPSS Statistics Base
- SPSS Statistics Campus
- SPSS Statistics Developer
- SPSS Statistics Faculty Pack
- SPSS Statistics GradPack
- SPSS Statistics Premium
- SPSS Statistics Professional
- SPSS Statistics Programmability Extension
- SPSS Statistics Server
- SPSS Statistics Standard
- SPSS Statistics for Linux on System z
- SPSS Text Analytics for Surveys
- SPSS Visualization Designer

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