You could really have the basis and able to make analysis based up on what you do saw.So to speak about fundamentals and indicators then it would be ideal or good to have both.You could always combine
the two and just by said by others that not all the times that the market will create some news and events which you would tend to make use but if you cant see something then its just
right that you would make use of indicators so that you could make out decisions on different market conditions but of course it wont really be easy as it sounds.