R vs haskell for large datasets massive sofisticatad statistic calculations data mining machine learning

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data

Haskell

mathematics

R

I am courious. which tool should be picked for massive sofisticatad statistic calculations data mining machine learning environement ?

haskell language is pure functional, no mathematical packages, fast, professional.

R language is procedural, has massive mathematical packages, slow, experimental.

ps. not talking about python, ruby, java-based(jvm), etc.

tnx