// ColumnNames is the slice of column names that make up this DataFrame.
ColumnNames is the slice of column names that make up this DataFrame.
// ColumnNames is the slice of column names that make up this DataFrame .
func (df *DataFrame) ColumnNames() []string {
	fields := df.schema.Fields()
	names := make([]string, len(fields))
	for i, field := range fields {
		names[i] = field.Name
	}
	return names
}
func ( df * DataFrame ) ColumnNames ( ) [ ] string { fields := df . schema . Fields ( ) names := make ( [ ] string , len ( fields ) ) for i , field := range fields { names [ i ] = field . Name } return names }
ColumnNames is the slice of column names that make up this DataFrame.
ColumnNames is the slice of column names that make up this DataFrame .