dimension_count.gsql

CREATE OR REPLACE FUNCTION gds.vector.dimension_count(list<double> list1) RETURNS(int) {

  /*
  First Author: Jue Yuan
  First Commit Date:  Nov 27, 2024 

  Recent Author: Jue Yuan
  Recent Commit Date: Nov 27, 2024 

  Maturity:
      alpha

  Description:
      Returns the number of dimensions (elements) in a given vector, represented as a list of double values.
      This function is useful for determining the size or dimensionality of input vectors in mathematical
      and data processing operations.

  Parameters:
      list<double> list1:
          The input vector as a list of double values.

  Returns:
      int:
          The number of elements (dimensions) in the input vector.

  Logic Overview:
      Accepts a list of double values as input.
      Calculates the size of the list, which corresponds to the number of dimensions.
      Returns the size as an integer.
  Use Case:
      This function is valuable in vector-based computations, such as machine learning or data analysis tasks,
      where understanding the dimensionality of vectors is crucial for validation, preprocessing, or compatibility checks.
  */

  ListAccum<double> @@myList1 = list1;
  RETURN @@myList1.size();
}