What's the issue you're running into? If it's confusion with the API, hopefully this example is helpful:

> readRow (ParserOptions Nothing "," NoQuoting) "bill,true,true,false" :: Rec (Either Text) ["Name" :-> Text, "Cat" :-> Bool, "Dog" :-> Bool, "Goldfish" :-> Bool]

{Right Name :-> "bill", Right Cat :-> True, Right Dog :-> True, Right Goldfish :-> False}

Requires OverloadedStrings, DataKinds, TypeOperators.

If you then want to extract data you can then do something like

> rget (Proxy :: Proxy ("Name" :-> Text)) row

Right Name :-> "bill"

I assume there is some easier API for this (looks like via template haskell?). Seems kind of sad if there's no convenient way to do things without using TH, but I don't see anything obvious.

--Will

On Tue, Jun 5, 2018 at 5:58 PM, Tyson Whitehead <twhitehead@gmail.com> wrote:

I have a case where some of my data is stored in CSV matrix form like this example of a table telling whether person i has pet j

,cat,dog,goldfish
bill,true,true,false
sue,false,true,true
fred,false,false,true

I can't see any obvious way to read this sort of thing in with the Data.Frames package. Would love to be told differently.

Thanks! -Tyson
_______________________________________________
Haskell-Cafe mailing list
To (un)subscribe, modify options or view archives go to:
http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe
Only members subscribed via the mailman list are allowed to post.