src/Aggregate.js
function collect(cells) {
    var key, i, t, v;
    for (key in cells) {
      t = cells[key].tuple;
      for (i=0; i<n; ++i) {
        vals[i][(v = t[dims[i]])] = v;
      }
    }
  }
function collect(cells) {
    var key, i, t, v;
    for (key in cells) {
      t = cells[key].tuple;
      for (i=0; i<n; ++i) {
        vals[i][(v = t[dims[i]])] = v;
      }
    }
  }
function collect ( cells ) { var key , i , t , v ; for ( key in cells ) { t = cells [ key ] . tuple ; for ( i = 0 ; i < n ; ++ i ) { vals [ i ] [ ( v = t [ dims [ i ] ] ) ] = v ; } } }
collect all group-by domain values
collect all group - by domain values