Types

DataFrame = ref object
  columns*: OrderedTable[string, Series]
  index*: seq[string]
  shape*: tuple[rows, cols: int]

DataType = enum
  dtInt, dtFloat, dtString, dtBool, dtDateTime

GroupedDataFrame = ref object
  groups*: OrderedTable[string, DataFrame]
  groupByColumn*: string

Series = ref object
  data*: seq[Value]
  name*: string
  dtype*: DataType
  index*: seq[string]

Value = object
  case kind*: DataType
  of dtInt:
    intVal*: int64
  of dtFloat:
    floatVal*: float64
  of dtString:
    stringVal*: string
  of dtBool:
    boolVal*: bool
  of dtDateTime:
    dateTimeVal*: DateTime