avg method

double avg(
  1. String column
)

Average of numeric values in a column.

Implementation

double avg(String column) {
  num total = 0;
  var cnt = 0;
  for (final v in this.column(column)) {
    if (v is num) {
      total += v;
      cnt++;
    }
  }
  return cnt > 0 ? total / cnt : 0;
}