Historic Data appeared magically in chart?

• 01/16/2017 at 8:43 AM #21222
  Dave

  OK, Being an IG uk user I suffer from lack of historic data on my charts however, this morning when starting up my platform, one chart, a 30tick chart took an age to load. When it did finally appear there is almost 3 months of historic data that has magically appeared – hoorah!!, I’m not complaining but would like to know how it could have happened when my other small timeframe charts only have data from the beginning of the week?

  Dave

  

  Dave

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  01/16/2017 at 9:10 AM #21227
  JC_Bywan

  Hi,

  When using x ticks views, I’ve noticed using a multiple of 10 ticks is more likely to give you longer historic data. It’s a trick that works both ways: use a multiple of 10 if you prefer longer history for backtesting purpose, use numbers like 11 or 53 or 102 or 501 if you want to shorten history so that you can have several x ticks charts viewed in the same working space without taking ages to launch it and/or reaching memory limits too soon.

  Here is a comparison of maximum history you can reach depending on timeframe and instrument and on the PRT version (complete or premium): http://ee.md.it-finance.com/IGIndex/features_premium.phtml?locale=en_GB

  Sometimes (x ticks views, 30 minutes charts) you need to have very few charts (possibly just one) at the same time in the working space to reach the maximum possible history length

  Also, for small x ticks when ovw is involved, it seems to work better if you choose in the chart to look back x days rather than x units.

  

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  01/16/2017 at 11:21 AM #21271
  Dave

  • OK thanks for the explanation.

  

  Dave

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  01/17/2017 at 8:16 AM #21403
  Dave

  pufff…. and today the data is gone!!. This morning data is only displayed from beginning of week, nice while I had it.

  

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  01/17/2017 at 12:09 PM #21431
  JC_Bywan

  Are you with “x units” history size? I used to have that problem with weekends controlling x ticks history size with (x) units for small ticks numbers (either taking ages, or being too small from monday morning), but it’s been stable since I started using (x) days rather than (x) units for anything lower than 100 ticks. For example with current history settings as in attached file set at 3 days (surrounded yellow), for 30 ticks candle size on french F40 CFD, it gives me a history starting last thursday rather than just monday morning.

  

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