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cl-spark

This small utility has nothing common with Apache Spark and big data processing. However, it relates to data plotting.

Cl-spark allows you to visualize data in the console like that:

POFTHEDAY> (cl-spark:spark '(1 0 1 0))
"█▁█▁"

POFTHEDAY> (cl-spark:spark '(1 1 2 3 5 8))
"▁▁▂▃▅█"


POFTHEDAY> (cl-spark:spark '(0 30 55 80 33 150))
"▁▂▃▄▂█"

POFTHEDAY> (cl-spark:spark '(0 30 55 80 33 150)
                           :min -100)
"▃▄▅▆▄█"
POFTHEDAY> (cl-spark:spark '(0 30 55 80 33 150)
                           :max 50)
"▁▅██▅█"
POFTHEDAY> (cl-spark:spark '(0 30 55 80 33 150)
                           :min 30
                           :max 80)
"▁▁▄█▁█"

Or like that:

POFTHEDAY> (cl-spark:spark
            '(0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
            :key (lambda (x)
                   (sin (* x pi 1/4))))
"▄▆█▆▄▂▁▂▄▆█▆▄▂▁"


POFTHEDAY> (cl-spark:vspark
            '(0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
            :key (lambda (x)
                   (sin (* x pi 1/4)))
            :size 20)
"
-1.0     0.0     1.0
˫--------+---------˧
██████████▏
█████████████████▏
████████████████████
█████████████████▏
██████████▏
██▉
▏
██▉
█████████▉
█████████████████▏
████████████████████
█████████████████▏
██████████▏
██▉
▏
"

It’s repository has a lot more examples. Check it out:

https://github.com/tkych/cl-spark