I plotted a graph from data I got from simulations, however the challenge I am having is that some data points are on the Y and X axis. I have tried using Log & semilogx but its giving me -ve values. I need +ve values. How can I resolve this pls?

I plotted a graph from data I got from simulations, however the challenge I am having is that some data points are on the Y and X axis. I have tried using Log scale & semilogx but its giving me -ve values. I am working on flow rates hence I need to have positive values for flow rates not negative.

[Shruti Shivaramakrishnan]

It might be helpful if you could please provide the sample data as well as the relevant code that you might be using.