From the plugin wiki: csvFileName (string, default: "$ROOT_DIR/plot-XXXX.csv") The name of the CSV file that persists the plots data. The CSV file is stored in the projects root directory. This is different from the source CSVle that can be used as a source for the plot.
However, I don't see the csvFileName in root directory or anywhere in the workspace. I do see the CSVle file in the root of the workspace directory.
Here is the Jenkins snippet: