I have data in tens of thousands such that it has two fields - time and stock rate. The time field is a field which is always increasing and is non repeating, While the stock rate always varies between 23 and 26. So, for the time column I have twenty thousand distinct values while for stock rate I would have just 30 values possible.
So my question is how to represent this data. what i can think now is that that the line chart ( http://en.wikipedia.org/wiki/Line_chart ) is the best way. So, is it ?