support for functions in selections, added arctan, custom labels for selections, gaussian smoothing in plot, added median for what, title in plot, adding in memory columns, polar coordinate and velocity transformations
support for functions in selections, added arctan, custom labels for selections, gaussian smoothing in plot, added median for what, title in plot, adding in memory columns, polar coordinate and velocity transformations

maartenbreddels/vaex,maartenbreddels/vaex,maartenbreddels/vaex,maartenbreddels/vaex,maartenbreddels/vaex,maartenbreddels/vaex