Hello Venkat,
I'm travelling right now, but I wanted to give you quickly an hint for that.
What I do for hist right now (the hist function will be included in the next release btw), is that I compute the hist values in a Seq[(String, Double)] then render them in a widgets.BarChart.
It's the easiest to do to have a quick result, of course we can continue how to make an elaborated one using either DyiChart or maybe Wisp but then I'll need my machine and most probably it'll be easier to discuss that over gitter :-)
hth
andy