Thank you for your help. I am now trying to validate a Cox model using external data. I am now reading an article: Royston, P. "Tools for checking calibration of a Cox model in external validation: Approach based on individual event probabilities" The State Journal (2014), 14, Number 4, pp. 738-755.
https://journals.sagepub.com/doi/pdf...867X1401400403
However, I cannot run the code (screenshot below) included in this article on page 746 anymore. Everytime I run stcoxcal... I get an error message: "option addplot() not allowed r(198);" I am now using State/BE 18.0. I'd like to know if you could help me figure out the issue and run the code below again? Many thanks!
https://journals.sagepub.com/doi/pdf...867X1401400403
However, I cannot run the code (screenshot below) included in this article on page 746 anymore. Everytime I run stcoxcal... I get an error message: "option addplot() not allowed r(198);" I am now using State/BE 18.0. I'd like to know if you could help me figure out the issue and run the code below again? Many thanks!
