Plots (Complex Samples Cox Regression)

The Plots tab allows you to request plots of the hazard function, survival function, log-minus-log of the survival function, and one minus the survival function. You can also choose to plot confidence intervals along the specified functions; the confidence level is set on the Options tab.

Predictor patterns. You can specify a pattern of predictor values to be used for the requested plots and the exported survival file on the Export tab. Note that these options are not available if time-dependent predictors defined on the Predictors tab are included in the model.

  • Plot Factors at. By default, each factor is evaluated at its highest level. Enter or select a different level if wanted. Alternatively, you can choose to plot separate lines for each level of a single factor by selecting the check box for that factor.
  • Plot Covariates at. Each covariate is evaluated at its mean. Enter or select a different value if you want.

How To Obtain Plots

This feature requires the Complex Samples option.

  1. From the menus choose:

    Analyze > Complex Samples > Cox Regression...

  2. Select a plan file. Optionally, select a custom joint probabilities file and then click Continue.
  3. Click the Plots tab.