code: function removeColumn(values, col, colsPerRow) {
    var n = 0;
    for (var i = 0, l = values.length; i < l; i++) {
      if (i % colsPerRow !== col) values[n++] = values[i];
    }
    values.length = n;
  }
docs: Remove a column from the values array.
  
  @param {Array} values Array of values.
  @param {number} col Index of the column.
  @param {number} colsPerRow Number of columns per row.
  
  @private