Configure plots of the main data to appear in log scale
For some types of data it would be useful for users to be able to plot them with log scale.
Rob also asked: "It looks like one can make histograms log scaled (in the GUI), It would just be awesome to have “negative” log (e.g. absolute value in log space, but negative sign to plot)." (This second part may get deferred to a different issue later, but I want to note it here so I don't forget.)