I am trying to reproduce some of the results in a paper from 2018 where the results were included in a graph but no exact values were given. There is no results table to go with the graph. I can't exactly compare what I produce with my guesses as to what the values in the graph are. They also did not specify one of the parameters used to produce the results.
I have emailed the authors multiple times and they keep ignoring my question about sharing these values with me and apparently do not have the parameter values as they don't have the logs any longer. I am unsure how to proceed with this. It's a paper published in a high-impact well respected journal.
Any help or guidance would be appreciated. I am not being rude or brash about the way I've asked for these results. I just explained I want to compare to them and can't use the graph because I need some level of accuracy.