Overview (CSORDINAL command)

CSORDINAL performs regression analysis on a binary or ordinal polytomous dependent variable using the selected cumulative link function for samples drawn by complex sampling methods. The procedure estimates variances by taking into account the sample design used to select the sample, including equal probability and probability proportional to size (PPS) methods and with replacement (WR) and without replacement (WOR) sampling procedures. Optionally, CSORDINAL performs analyses for a subpopulation.

Basic Specification

  • The basic specification is a variable list identifying the dependent variable, the factors (if any), and the covariates (if any) and a PLAN subcommand with the name of a complex sample analysis plan file, which may be generated by the CSPLAN procedure.
  • The default model includes threshold parameters, main effects for any factors, and any covariates.
  • The basic specification displays summary information about the sample and all analysis variables, model summary statistics, and Wald F tests for all model effects. Additional subcommands must be used for other output.

Syntax Rules

  • The dependent variable and PLAN subcommand are required. All other variables and subcommands are optional.
  • Multiple CUSTOM and ODDSRATIOS subcommands may be specified; each is treated independently. All other subcommands may be specified only once.
  • Empty subcommands are not allowed; all subcommands must be specified with options.
  • Each keyword may be specified only once within a subcommand.
  • Subcommand names and keywords must be spelled in full.
  • Equals signs (=) shown in the syntax chart are required.
  • Square brackets shown in the syntax chart are required parts of the syntax and are not used to indicate optional elements. (See the ODDSRATIOS and CRITERIA subcommands.)
  • Subcommands may be specified in any order.
  • The dependent variable, factors, and the subpopulation variable can be numeric or string variables, but covariates must be numeric.
  • Across the dependent, factor, and covariate variable lists, a variable may be specified only once.
  • Plan file and subpopulation variables may not be specified on the variable list.
  • Minimum syntax is a dependent variable and the PLAN subcommand. This specification fits a thresholds-only model.

Operations

  • CSORDINAL performs ordinal regression analysis for sampling designs supported by the CSPLAN and CSSELECT procedures.
  • The input data set must contain the variables to be analyzed and variables related to the sampling design.
  • The complex sample analysis plan file provides an analysis plan based on the sampling design.
  • By default, CSORDINAL uses a model that includes thresholds, main effects for any factors, and any covariates.
  • Other effects, including interaction and nested effects, may be specified using the MODEL subcommand.
  • The default output for the specified model is summary information about the sample and all analysis variables, model summary statistics, and Wald F tests for all model effects.
  • WEIGHT and SPLIT FILE settings are ignored by the CSORDINAL procedure.
  • This procedure uses the multithreaded options specified by SET THREADS.

Limitations

  • WEIGHT and SPLIT FILE settings are ignored with a warning by the CSORDINAL procedure.