On 25.03.2012 14:52, Tom Doris wrote:
Hi Heinrich,
If we compare the GHCi experience with R or IPython, leaving aside any GUIs, the help system they have at the repl level is just a lot more intuitive and easy to use, and you get access to the full manual entries. For example, compare what you see if you type :info sort into GHCi versus ?sort in R. R gives you a view of the full docs for the function, whereas in GHCi you just get the type signature.
Ingrating haddock documentation into GHCi would be really helpful but it's GSoC project on its own. For me most important difference between R's repl and GHCi is that :reload wipes all local binding. Effectively it forces to write everything in file and to avoid doing anything which couldn't be fitted into one-liner. It may not be bad but it's definitely different style And of course data visualization. Only library I know of is Chart[1] but I don't like API much. I think talking about data frames is a bit pointless unless we specify what is data frame. Basically there are two representations of tabular data structure: array of tuples or tuple of arrays. If you want first go for Data.Vector.Vector YourData. If you want second you'll probably end up with some HList-like data structure to hold arrays. [1] http://hackage.haskell.org/package/Chart