Binary, count, and limited dependent variables


Logistic/logit regression
  • basic (dichotomous) ML logistic regression with influence statistics
  • fit diagnostics and ROC curve
  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • skewed logistic regression
  • grouped-data logistic regression

Conditional logistic regression

  • McFadden's choice model
  • 1:1 and 1:k matching
  • conditional fixed-effects logit models (m:k matching) with exact likelihood (no limit on panel size)
  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • linear constraints

Multinomial logistic regression

  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • linear constraints

Probit regression

  • dichotomous outcome with ML estimates
  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • bivariate probit regression
  • endogenous regressors
  • grouped-data probit regression
  • heteroskedastic probit regression

Ordinal regression models

  • ordered logistic (proportional-odds model)
  • ordered probit
  • robust, cluster–robust, bootstrap, and jackknife standard errors

Tobit regression and truncated regression

  • lower and upper limits of censoring
  • differing limits for each observation
  • predictions available for expected value, conditional expected value, censored expected value, and probability of censoring
  • endogenous regressors
  • bootstrap and jackknife standard errors for tobit regression
  • robust, cluster–robust, bootstrap, and jackknife standard errors for truncated regression
  • linear constraints

Interval and censored-normal regression

  • open and closed intervals
  • robust, cluster–robust, bootstrap, and jackknife standard errors for interval regression
  • bootstrap and jackknife standard errors for censored-normal regression
  • linear constraints

Poisson and negative-binomial regression

  • Poisson goodness-of-fit tests
  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • linear constraints

Rank-ordered logistic regression

  • Plackett–Luce model, exploded logit, choice-based conjoint analysis
  • complete rankings of ordered outcome
  • incomplete rankings of ordered outcome
  • ties ("indifference")
  • robust or cluster–robust standard errors

Stereotype logistic regression

  • predictions of probabilities of outcomes
  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • linear constraints
 

Nested logit

  • full maximum-likelihood estimation
  • up to eight nested levels
  • facilities to set up the data and display the tree structure
  • linear constraints, including constraints on inclusive value parameters
  • predictions available for utility functions, probabilities, conditional probabilities, and inclusive values
  • robust standard errors

Multinomial probit regression

  • alternative- and case-specific variables
  • homo- or heteroskedastic variances
  • various correlation structures, including user-specified
  • probabilities based on GHK simulator
  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • linear constraints

Heckman selection models

  • two-step and full maximum likelihood
  • predictions available for Mills' ratio, expected value, conditional expected value, probability of selection, nonselection hazard, and more
  • robust, cluster–robust, bootstrap, and jackknife standard errors (maximum likelihood estimator only)
  • linear constraints

Heckman selection with a binary outcome

  • predictions available for probability of binary outcome, all four combinations of outcome and selection, probability of selection, conditional probability of outcome, and more
  • robust, cluster–robust, bootstrap, and jackknife standard errors (maximum likelihood estimator only)
  • linear constraints

Zero-inflated models

  • zero-inflated Poisson
  • zero-inflated negative binomial
  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • linear constraints

Zero-truncated models

  • zero-truncated Poisson
  • zero-truncated negative binomial
  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • linear constraints

Treatment-effects model

  • fitted values and their standard error (SE)
  • expected value given treatment or nontreatment and their SEs
  • probability of treatment and its SE
  • robust, cluster–robust, bootstrap, and jackknife standard errors
  • linear constraints

Marginal effects

  • marginal effects and elasticities
  • standard errors and confidence intervals
  • computation at means or specified covariate values
  • computation for any predicted statistic

Linear and nonlinear combinations


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