<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 10pt; color: #000000'>Barth,<br><br>thanks for all the explanations. I am starting to see the issue, but I don't have time right now to provide you detailed explanations. May I suggest you play around with one of the ASCII files in sample_data? I am pretty sure yuo'll understand my issues, if you consider carefully what happens to labels and legends when loading the data into one or more plots.<br><br>In fact, I have the feeling that I don't grasp the concept behind units and quantities, maybe you could elaborate a bit on that?<br><br>Cheers,<br><br>Nicolas<br></div></body></html>