I am running to a problem where I have to plot one scatter (data points), the other one the best line fit(trend line) for those data points in one chart. The X axis is datetime format which I, myself, am chaning it into a double value with a base date. The plots get plotted well individually. However, I dont get good results when I combine them together and have them on one chart. I think the problem is with autoscale of the x axis. Thank you!