gt(other: any): Series {
    return this.where(other, (a, b) => a > b);
  }
Greater than of `Series` and other, element wise

pandas equivalent: Series > val

@param {Series|Array|List|number|string} other
   Other `Series` or scalar value to check for greater than

@returns {Series}

@example
const ds = new Series([1, 2, 3], {name: 'Test name'})

// Returns Series([false, true, true])
ds.gt(1);

// Returns Series([true, false, false])
ds.gt(new Series([0, 2, 3]));

// Returns Series([true, false, false])
ds.gt(Immutable.List([0, 2, 3]));

// Returns Series([true, false, false])
ds.gt([0, 2, 3]);