return the number of items that have been entered into the dataset . concode_field_sep int count concode_elem_sep double squareSum concode_elem_sep double sum concode_field_sep double getStandardDeviation concode_elem_sep double getMin concode_elem_sep double getMax concode_elem_sep double getMean concode_elem_sep void enter concode_elem_sep double getSum
int function ( ) { return count ; }