william Posted April 19, 2021 Report Share Posted April 19, 2021 (edited) Not a new issue, but occasionally is a problem: On data older than 5 days, my line tick chart only displays the last tick in each "bar" period rather than its usual tick-by-tick line. That is, the chart looks just like backfilled data except that (1) the tick data are all visible in the raw data display and (2) my "bar" frequency is only .05 min., far faster than 1-min OHLC backfill. I even have one chart of 6-day-old data that has the erroneous display in the AM and a correct display in the PM. [Edit] Oops, now the PM data also charts wrongly, so there definitely is a 5-day cutoff. I have "Intraday Backfill — Number of Days" set to 10 and "Compress Tick data to OHLC beyond ..." set to 999 days. — William Edited April 19, 2021 by william Quote Link to comment Share on other sites More sharing options...
Jerry Medved Posted April 19, 2021 Report Share Posted April 19, 2021 SETTINGS / CHARTS / GENERAL - You may need to increase the "Compress Tick data to OHLC beyond X days" setting. Quote Link to comment Share on other sites More sharing options...
william Posted April 20, 2021 Author Report Share Posted April 20, 2021 10 hours ago, Jerry Medved said: SETTINGS / CHARTS / GENERAL - You may need to increase the "Compress Tick data to OHLC beyond X days" setting. ??? I already have it set to 999, the max the field will take in the dialog. Quote Link to comment Share on other sites More sharing options...
Jerry Medved Posted April 20, 2021 Report Share Posted April 20, 2021 OK, note that regardless of that setting, you do actually have to have tick data. With a few exceptions, you can only get it from running MT and having it get the Level I quotes and store them. If the data is backfilled, it will be OHLC. Were you running MT for more than 5 days getting the data? Is it still exactly 5 day cut off or is it now 6 or 7? Quote Link to comment Share on other sites More sharing options...
william Posted April 20, 2021 Author Report Share Posted April 20, 2021 Yes, talking only about tick data that MT collected from IB (which I understand may be aggregated, but we're talking about the chart changing without the data changing). Here's a photo of the line tick chart that's 5 days old, with its raw data, and another photo of the same chart 6 days old with its SAME raw data. Same specs for both — period 61 bars & freq .05 min. The latter photo shows only one tick charted per bar in spite of multiple ticks per bar in the raw data (e.g., at 11:42:22–23). The cutoff seems to stay at 5 days, but often an older chart stays OK until I change something, e.g. frequency, and then the display goes bad like the second photo. Quote Link to comment Share on other sites More sharing options...
Jerry Medved Posted April 20, 2021 Report Share Posted April 20, 2021 Oh, I see. there is a max of 1 Million points for the chart. I am guessing that you are reaching that max. Will see if it can be increased without too much impact... Quote Link to comment Share on other sites More sharing options...
Jerry Medved Posted April 20, 2021 Report Share Posted April 20, 2021 I stand corrected. that 1 mill is for overall candles. For detailed tick count, the max is 500,000 and after that it consolidates Quote Link to comment Share on other sites More sharing options...
william Posted April 20, 2021 Author Report Share Posted April 20, 2021 Good enough, I can live with that feature, thanks. Just wanted to make sure I wasn't the victim of some bug. Quote Link to comment Share on other sites More sharing options...
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