The answer to your query is already contained in the use of the function InteractiveTradingChart. At the bottom of its display, just under the date boxes and above the chart type menu, there is a timeline for the entire history chosen in the command, with a slider control. That slider can be moved to any point in the financial history and its edges can be moved in or out so that the displayed data can be concentrated on as few points or as many points as you wish.

Henrick:

I'd be interested in collaborating with you on this sort of thing. But, I won't have any availability for a couple of weeks.

If you want a collaborator, just let me know.

Hello Rohit. Yes, it is true that once I've loaded the stock data, it is all there and I can compute all the patterns, waves, etc... However, my algorithm works incrementally, meaning that having analyzed the last N bars, it updates new patterns, waves, etc,,, when the new bar comes in. So, for example, say I am looking at 1 minute bars and started doing so when the market opened on a particular day. After 30 minutes I would have 30 bars and, presumably, information about patterns, waves, etc... up to that point. Then, at minute 31 I receive bar #31. At that point, I don't want to have to recompute everything with 31 bars. Instead, my algorithm uses the newest bar to update its patterns, waves, etc... So, I want to simulate a ticker that updates, let's say, every minute with new 1 minute bar ( Could have the update be every second to go faster) and on every new bar, I want to display on the chart (that is another question I have) extension of trendlines, appearance of patterns, waves, etc... I could even display BUY or SELL signals or display the appearance of support or resistance lines.

Now, perhaps you can answer this question. Can one draw lines on individual frame, and if so, how?

Hello Rohit, This is much better. I will try it. Thanks.

Thank you Rohit. Your solution is a start. I put it in and it does animate the chart. However, I see that as the chart is updated, it might have 4 or 3 or 1 new candlestick added to the previous ones. I really would like to have it update with only 1 new candlestick Interestingly enough, while your example was running, the cell had the Orange bar on the right with the + sign at the top that indicates that there is an error. So, I aborted the evaluation and looked at the frames variable. It was very informative. Thank you very much. I am not marking your reply as a solution yet, as I would like to see what others might contribute. However, I could use what you sent, with some changes. Again, thank you very much.