add ability to set multi-valued booster params

dmlc / XGBoost.jl

XGBoost Julia Package

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add ability to set multi-valued booster params #164

Closed ExpandingMan closed 1 year ago

ExpandingMan commented 1 year ago

Prompted by #163 I discovered that the C API expects certain parameters to be set via multiple separate calls. Currently the only way to do this is via multiple calls to setparam!. This PR adds that ability to reproduce the same behavior with an AbstractVector or Tuple.