Vocabulary¶
These conventions are used in methods and properties name
Data point¶
A data point is a Map<String, dynamic>
dictionnary with column names
and data values, a line in the dataframe with qualified column names
final List<Map<String, dynamic>> dataPoints = df.dataSubset(10, 300);
Row¶
A row is a List<dynamic>
list of records, a line in the dataframe:
final List<List<dynamic>> rows = df.rowsSubset(10, 300);
Record¶
A record is a single value: ex:
final List<GeoPoint> records = df.colRecords<GeoPoint>("geometry");
Index¶
A row index list of int
: the vertical dimension of the dataframe
Indice¶
A column indice list of int
: the horizontal dimension of the dataframe