I used operator "Performance" to conduct the performance analysis for a classification problem. I would like to generate a PDF report for the confusion matrix, AUC plot, etc. I tried several approaches, connecting "performance" with "generate report' and then "report", or "write performance". Neither approach works. The error message can be either "no pages added" or the generated pdf file just cannot be opened at all. Is there a workable approach to generate pdf file from the performance vector?