incanter

2016-01-30T19:24:00.000005Z

@eleonore: i see the same exception, so i don’t think ur doing anything wrong

2016-01-30T19:25:03.000006Z

it seems the $map function is trying to do a (get _ :speed) on a clojure.core.matrix.impl.wrappers.SliceWrapper and is returning nil

2016-01-30T19:25:49.000007Z

even "($map identity :speed cars)” returns a vector of nil's

2016-01-30T19:26:59.000008Z

i’m still using incanter 1.5.6 - ran into lots of problems (like this one) w/ 1.9.0