SELECT Subcommand (REGRESSION command)

By default, all cases in the active dataset are considered for inclusion on REGRESSION. Use SELECT to include a subset of cases in the correlation matrix and resulting regression statistics.

  • The required specification on SELECT is a logical expression.
  • The syntax for the SELECT subcommand is as follows: 
    /SELECT=varname relation value
  • The variable named on SELECT should not be specified on the VARIABLES subcommand.
  • The relation can be EQ, NE, LT, LE, GT, or GE.
  • Only cases for which the logical expression on SELECT is true are included in the calculation of the correlation matrix and regression statistics.
  • All other cases, including those with missing values for the variable named on SELECT, are not included in the computations.
  • If SELECT is specified, residuals and predicted values are calculated and reported separately for both selected and unselected cases by default. See the topic RESIDUALS Subcommand (REGRESSION command) for more information.
  • Cases deleted from the active dataset with SELECT IF, a temporary SELECT IF, or SAMPLE are not passed to REGRESSION and are not included among either the selected or unselected cases.

Example

REGRESSION SELECT SEX EQ 'M'
 /VARIABLES=AGE,STARTPAY,YRS_JOB,SALARY
 /DEPENDENT=SALARY
 /METHOD=STEP
 /RESIDUALS=NORMPROB.
  • Only cases with the value M for SEX are included in the correlation matrix calculated by REGRESSION.
  • Separate normal P_P plots are displayed for cases with SEX equal to M and for other cases. See the topic RESIDUALS Subcommand (REGRESSION command) for more information.