Of course. But, to counter-nitpick, the OP asked for "the first N
*unique* random floats". Hence distinct.
I might point out, though, that getting floats and truncating them to
two digits is wasting a lot of the processor's time, and yours in
writing it. I'd get integers first and then divide to turn them into
floats:
(map #(str (/ % 100.0)) (take 100 (distinct (repeatedly #(rand-int
10000)))))
("36.35" "92.07" "41.02" "61.19" "12.19" "54.07" "11.39" "41.55"
"25.87" "20.84" "88.42" "74.26" "24.87" "75.45" "60.82" "1.06" "68.24"
"54.36" "89.64" "63.99" "94.73" "79.75" "40.96" "90.57" "79.56"
"59.18" "65.45" "24.18" "49.95" "13.15" "5.88" "38.99" "14.98" "93.17"
"38.41" "82.29" "53.7" "82.61" "30.39" "67.77" "96.84" "30.41" "28.42"
"3.63" "32.23" "53.97" "73.96" "76.15" "61.65" "61.51" "80.41" "25.73"
"37.77" "86.59" "95.9" "45.85" "13.95" "97.85" "18.63" "7.59" "46.51"
"45.56" "28.37" "62.39" "99.77" "33.22" "46.36" "3.77" "17.05" "57.38"
"38.95" "75.52" "37.72" "41.4" "35.4" "97.82" "59.82" "0.38" "39.27"
"45.74" "70.51" "13.24" "74.38" "55.07" "92.69" "45.54" "21.53"
"49.42" "24.82" "61.68" "70.05" "79.37" "83.37" "89.07" "29.4" "39.66"
"92.49" "48.23" "20.7" "83.6")
On Feb 18, 4:19 pm, Joost <[email protected]> wrote:
> On Feb 19, 12:38 am, Alan <[email protected]> wrote:
>
> > user=> (take 100 (distinct (repeatedly #(rand-int 200))))
>
> Nitpick: the distinct call may be useful in some circumstances, but if
> you want a truly random sequence, you definitely do not want it there.
>
> Joost.
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