Create a dataframe
Operations on data
Conventions
Select all the records for a column
final List<GeoPoint> records = df.colRecords<GeoPoint>("geometry");
Limit the dataframe to a given number of rows
final df = df.limit(50, startIndex: 20); // or df.limitI(50);
Start index is optional
Select subsets of data
Select a rows subset
final List<List<dynamic>> rows = df.rowsSubset(10, 300);
Select a data subset
final List<Map<String, dynamic>> dataPoints = df.dataSubset(10, 300);