#(nth % 1) is the same as clojure.core/second. You can also use
(.split data "\n") instead if you like; it's nice to have the function
first.

On Oct 25, 9:04 am, Tim Webster <timothy.webs...@gmail.com> wrote:
> I thought that the issue might be that the concrete data still was not
> populated in my list-of-lists, unlike your literal, so I started with
> a clean environment and re-ran my repl session line by line from the
> jline history file. I could not reproduce the error. (Which troubles
> me even more...the error had to come from somewhere.)
>
> For the record, here is how I build the table:
>
> (def data (slurp "data.txt"))
> (def lines (. data split "\n"))
> (def my-table (map #(. % split "\t") lines))
>
> On Oct 25, 9:28 am, Ken Wesson <kwess...@gmail.com> wrote:
>
> > On Oct 24, 11:46 pm, Tim Webster <timothy.webs...@gmail.com> wrote:
>
> > > I have an issue that I think is related to laziness, but I am not sure
> > > I understand where the problem lies.
>
> > > Let's say I have tabular data in a sequence of sequences. I get the
> > > second column of the table like this:
>
> > > (map #(nth % 1) my-table)
>
> > > I can do some sequence things directly to the list returned by the
> > > call to function, but not everything. For example,
>
> > > (distinct (map #(nth % 1) my-table))
>
> > > works fine, but
>
> > > (frequencies (map #(nth % 1) my-table))
>
> > > throws java.lang.RuntimeException: java.lang.IndexOutOfBoundsException
>
> > I can't reproduce this with Clojure 1.2:
>
> > user=> (frequencies (map #(nth % 1) [[1 2 3][4 5 6][1 2 3]]))
> > {2 2, 5 1}
>
>

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