Add a dataset type to the ascii reader params.

sasdata/temp_ascii_reader.py

@@ -1,5 +1,6 @@
 from sasdata.ascii_reader_metadata import AsciiMetadataCategory, AsciiReaderMetadata, pairings, bidirectional_pairings
 from sasdata.data import SasData
+from sasdata.dataset_types import DatasetType, one_dim
 from sasdata.quantities.units import NamedUnit
 from sasdata.quantities.quantity import NamedQuantity, Quantity
 from sasdata.quantities.accessors import AccessorTarget, Group
@@ -10,6 +11,7 @@
 import numpy as np
 import re
 from os import path
+from dataclasses import replace
 
 class AsciiSeparator(Enum):
     Comma = 0,
@@ -33,6 +35,7 @@ class AsciiReaderParams:
     starting_line: int = 0
     excluded_lines: set[int] = field(default_factory=set)
     separator_dict: dict[str, bool] = field(default_factory=initialise_separator_dict)
+    dataset_type: DatasetType = field(default_factory=lambda: replace(one_dim)) # Take a copy in case its mutated (which it shouldn't be)
 
     def __post_init__(self):
         self.initialise_metadata()