Hi Tomasz, Is there a way to speed up Percentile function?
Thanks, Louis 2008/5/11 Tomasz Janeczko <[EMAIL PROTECTED]>: > Hello, > > Use > AFL Editor, > Tools->Check and Profile > to find the bottleneck in your code. > > Most often people are > calling the same funciton over and over many times when > they should call it ONCE and store the result in variable. > This the most basic improvement can be applied to 99% of > formulas written and posted here to get a lot more speed. > The other thing is that you move all array function calls OUTSIDE > loops. That's second principle: *never* call array function > inside loop , unless you are doing something like iterating > through multiple symbols. But NEVER call array funcitons > inside per-bar loop. > > Best regards, > Tomasz Janeczko > amibroker.com > > ----- Original Message ----- > From: "ondrej.uhlarik" <[EMAIL PROTECTED] <ona%40mybox.cz>> > To: <[email protected] <amibroker%40yahoogroups.com>> > Sent: Sunday, May 11, 2008 2:44 PM > Subject: [amibroker] How To Restore Formula Speed? > > > Hello, > > I have programed quite a complicated indicator in AFL. When I load it > > in a pane it significantly slows down scrolling speed and reaction > > speed in general. That I find very annoying, so I made a Toggle > > parameter to switch between 2 modes: Basic (which does not show so much > > but does not affect speed so much either) and Advanced (which shows > > everything and affects speed a lot). Now the problem is as follows: > > I insert the indicator in a pane in the Basic mode and the speed is ok. > > Then I switch to the Advanced mode and the speed gets worse. Then I > > switch back to the Basic mode but the speed remains bad, i.e. the > > original speed is not restored. It seems that the Advanced data are > > still loaded in some memory cache and affect speed of the indicator > > even if I switch back to the Basic mode. Is there any chance to clear > > or reset the data loaded in memory (or whatever) without removing the > > indicator from the pane and re-inserting it back? > > Thank you for your ideas, and please keep in mind that I am a beginner > > in programing :) > > > > > > ------------------------------------ > > > > Please note that this group is for discussion between users only. > > > > To get support from AmiBroker please send an e-mail directly to > > SUPPORT {at} amibroker.com > > > > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > > http://www.amibroker.com/devlog/ > > > > For other support material please check also: > > http://www.amibroker.com/support.html > > Yahoo! Groups Links > > > > > > > >
