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I have been using the Price Change Bar chart interval (example 3P) for some time and find it very effective - the problem I am having is with respect to how the bars are calculated. I have searched high and low and have found brief explanations of how it is [supposed to be] calculated in the help file and in the FAQs on eSignal, but after spending a significant amount of time comparing a downloaded tick file for a specific day and a data export and chart of the same day for a 3P chart (used IBM), I can conclusively say that it does not measure the price changes as explained. I am not looking to change the way it is calculated, I just want to know *how* it is calculated. The calculation methodololgy is important because we are using 3rd party data for expansive back testing and need to mimic the chart. There was a confirmed bug in an earlier post, but I am not sure that this bug is the one I am seeing (I can not find any consistent logic). That post is here. The explanation in the eSignal FAQ is here. When using a 1 or a 2 price bar change, it does follow the described logic, but not with more than 2P (I used a 3P chart).
Could any of the gurus out there, or someone who was privy to the logic used in the application tell me how this is calculated?
Any help is appreciated.
Could any of the gurus out there, or someone who was privy to the logic used in the application tell me how this is calculated?
Any help is appreciated.
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