I am following the linear regression example here
(use '(incanter core stats datasets))
(def plant-growth (to-matrix (get-dataset :plant-growth) :dummies true))
(def y (sel plant-growth :cols 0))
(def x (sel plant-growth :cols [1 2]))
(def lm (linear-model y x))
However I get this error:
=> (def lm (linear-model y x))
ClassCastException clojure.lang.LazySeq cannot be cast to java.lang.Number clojure.lang.Numbers.lt (Numbers.java:219)
What is going on here?
Update: Neither does this example from the latest 1.4.1 (Stable) docs:
(use '(incanter core stats datasets charts))
(def iris (to-matrix (get-dataset :iris) :dummies true))
(def y (sel iris :cols 0))
(def x (sel iris :cols (range 1 6)))
(def iris-lm (linear-model y x)) ; with intercept term
Output:
=> (def iris-lm (linear-model y x))
ClassCastException clojure.lang.LazySeq cannot be cast to java.lang.Number clojure.lang.Numbers.lt (Numbers.java:219)
I'm using Clojure 1.5.1 and Incanter 1.4.1. Is this a bug that needs fixing? Where can I find authoritative, working examples?
