// Describe всех числовых столбцов
uses DataFrameABC;

begin
  var df := DataFrame.FromCsvText('''
  name,age,score
  Alice,20,85
  Bob,22,90
  Charlie,21,78
  Bob,22,90
  Clara,,78
  Kat,21,NA
  ''');
  
  var dfs := df.Describe('age');
  Println(dfs.Count,dfs.Max,dfs.Min,dfs.Mean,dfs.Std);
  dfs := df.Describe('score');
  Println(dfs.Count,dfs.Max,dfs.Min,dfs.Mean,dfs.Std);
end.