RE: [amibroker] Help understanding Arrays

[Terry]

Right Paul, no loops required. I believe the user was just trying to "understand" what was happening by using the loop so I was showing the problem with the loop, which is an easy one to make. The simple solution is just: Buy = Cross( MACD(12,26), Signal(9) ); Better yet, store the T/A for subsequent use in Sell, Short, Cover, Plot statements, etc. md = MACD(12,26); sig = Signal(9); Buy = Cross( md, sig );   As for "Buy" is an array, I already noted Fred's original statement "Buy is a light switch, either 0 or 1". -- Terry -----Original Message----- From: amibroker@yahoogroups.com [mailto:amibroker@yahoogroups.com] On Behalf Of Paul Chivers Sent: Saturday, October 14, 2006 22:11 To: amibroker@yahoogroups.com Subject: Re: [amibroker] Help understanding Arrays   Of course, you don't need loops to do what Jerry's doing anyway BUT!!! "Buy" is an array of true/false values (ignoring scaling etc) NOT an array of High prices so Jerry is still going to come unstuck.     ----- Original Message ----- From: Terry To: amibroker@yahoogroups.com Sent: Sunday, 15 October 2006 11:47 AM Subject: RE: [amibroker] Help understanding Arrays   The thing you are missing in the below is you have FORGOTTEN to use the subscript in your loop, thus you are setting the ENTIRE ARRAY to True. The last line of your loop should look like this and it will do what you are expecting.               {             Buy[i] = H[i]; }   Actually, this is technically incorrect because, as Fred said, Buy is a light switch, either 0 or 1. This sets Buy to the High. However it still works because Amibroker treats ANY NON-ZERO Number as true, even a negative one.   PS: I hope you are taking Fred's advice about not buying at the high ;-) -- Terry -----Original Message----- From: [EMAIL PROTECTED]ps.com [mailto:[EMAIL PROTECTED]ps.com] On Behalf Of laster Sent: Saturday, October 14, 2006 11:21 To: [EMAIL PROTECTED]ps.com Subject: [amibroker] Help undestanding Arrays   Hi, Still trying to figure out working with Arrays, and it’s apparent there is something I am not getting. My understanding of the following is: If in the i bar the cross of the MACD was true, then Buy at the High. However, Amibroker is buying in several circumstances (including when the condition is true). Can somebody smarter than me please translate the following formula into English so I can finally get it? Thanks a lot again, Jerry     Reason= Cross( MACD(12,26), Signal(9) ); for( i = 0; i < BarCount; i++ ) { if (Reason[i] == True)             {             Buy = H; } } __________ NOD32 1.1803 (20061013) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com __._,_.___ 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 other support material please check also: http://www.amibroker.com/support.html SPONSORED LINKS Software support Small business finance Business finance online Business finance training Business finance course Your email settings: Individual Email|Traditional Change settings via the Web (Yahoo! ID required) Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe __,_._,___