Fixed by doing this:
(defn map-mtr
[read-map premid reading]
(conj read-map {premid reading}))
On Jun 30, 11:11 am, octopusgrabbus <[email protected]> wrote:
> I have a sequence
>
> (def mtr-seq ["a" 1 "b" 2 "c" 3 "d" 4])
>
> and a function
>
> (defn map-mtr
> [read-map premid reading]
> (conj :read-map {:premid reading}))
>
> I do not understand how to select the first and second of the sequence
> to be put into mtr-seq.
>
> This (map-mtr [mtr-map][(first mtr-seq)][(first (rest mtr-seq))])
> fails with java.lang.ClassCastException: clojure.lang.Keyword cannot
> be cast to clojure.lang.IPersistentCollection
>
> In REPL I can select the first and second element with no problem.
> What am I doing wrong?
>
> Thanks.
> cmn
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