APPLY Subcommand (PPLOT command)

APPLY allows you to produce a plot by using previously defined specifications without having to repeat the PPLOT subcommands.

  • The only specification on APPLY is the name of a previous model in quotation marks. If a model name is not specified, the model that is specified on the previous PPLOT command is used.
  • To change any plot specifications, specify the subcommands of only those portions that you want to change. Make these entries after the APPLY subcommand.
  • If no variables are specified, the variables that were specified for the original plot are used.
  • To change the variables that are used with the model, enter new variable names before or after the APPLY subcommand.
  • The distribution type is applied, but the parameters are not applied.

Example

PPLOT VARIABLES = X1
  /FRACTION=TUKEY.
PPLOT VARIABLES = Z1
  /APPLY.
  • The first command produces two q-q normal-probability plots of X1, using Tukey’s transformation to compute the expected values.
  • The second command requests the same plots for variable Z1.

Example

PPLOT VARIABLES = X1 Y1 Z1
  /FRACTION=VW.
PPLOT APPLY
  /FRACTION=BLOM.
  • The first command uses van der Waerden’s transformation to calculate expected normal values of X1, Y1, and Z1.
  • The second command uses Blom’s transformation for the same three series.

Example

PPLOT VARIABLES = VARX
  /FRACTION=RANKIT
  /DIFF
  /STANDARDIZE.
PPLOT VARIABLES = VARY
  /APPLY
  /NOSTANDARDIZE.
  • The first command differences and standardizes series VARX and then produces a normal probability plot by using the RANKIT transformation.
  • The second command applies the previous plot specifications to VARY but does not standardize the series.