Steve,thank you so much!!!!!!!!!!!!!
And please,absolutely no need for apologies..You were anything but condescending,and the simplicity of your logic is exactly what I was hoping for...
Once again,Thank you for your kindness
Allan
----- Original Message -----
From: Steve Dugas <[EMAIL PROTECTED]> Date: Monday, July 24, 2006 10:08 am Subject: Re: RE: RE: [amibroker] Re: I am lostII > Hi Allen - Here are the basics of a simple loop, hope it is> helpful to someone...
>
> In "regular" AFL, all elements of the data arrays are
> automatically processed at once. So for example
>
> Close = 0;
>
> will automatically initialize the entire Close array ( all dates )
> by setting all of its elements to zero ( or more precisely, a
> working copy of Close, since actual database is not overwritten ).
> In general, it is quicker and easier to use this regular AFL -
> loops are really only necessary when you need to access individual
> array elements for some reason. A simple loop "template" would be
>
> for ( beginning counter value; test for condition(s) to break out
> of loop; increment counter )
> {
> code to do whatever you want to current array element
> }
>
> Now we will turn the template into a real loop. "i" is simply a
> variable that accepts a numeric value and acts as a counter. We
> will increment it with each pass through the loop to keep track of
> where we are. The letter "i" is commonly used for this because, I
> beleive, it stands for "integer", but we can actually use any
> variable name we want, such as "count", etc
>
> for( count = 0; count < BarCount; count++ )
> {
> Close[count] = 0;
> }
>
> This also initializes the count array to zero, but one element at
> a time. As you can see, using regular AFL is easier 8 - ) Now
> we will "pick apart" the loop a bit...
>
> for ( count = 0
>
> Since we want to start with the first array element ( element # 0
> ), we initialize the counter at 0. The loop reads this code just
> once at the beginning to see where to start, it will not be
> rechecked after the loop starts running.
>
> count < Barcount
>
> BarCount is the number of data bars for any given ticker. Lets say
> it is 1000, so the actual elements of the Close array would be
> numbered 0 - 999.
> "count < Barcount" tests to see if it is time to stop looping yet.
> It means "continue doing loops while count is less than Barcount."
> Since we have just set "count" to 0, it is less than 1000 so the
> loop will be entered.
>
> {
> Close[count] = 0;
> }
>
> This is the "body" of the loop - it contains the instructions to
> be performed on each pass through the loop. Here we are just
> initializing a single element of the Close array to 0. On this
> pass, the variable "count" is set to 0, so Count[0] ( first
> element ) will be set to 0.
>
> count++ ) // back up to the header now
>
> This is just a short way of writing "count = count + 1". We are
> just incrementing the count by one. When we are incrementing by 1,
> we are allowed to use this "shorthand". If we were incrementing by
> anything else, like 2 or 3, we would have to write "count = count
> + 2", etc. So next, count is incremented from 0 to 1.
>
> Now, the first pass is done, and subsequent passes will continue
> repeating the same above steps until the end of the array is
> reached -
> 1. Is count still < Barcount? If so, do another pass through loop,
> if not, time to exit the loop.
> 2. If doing another pass, set Close[count] ( next element ) to 0
> 3. increment counter again so next elent is accessed on next pass
>
> If this sounds too simplstic or condescending, I apologize. Or, if
> you have any questions, feel free to ask...
>
> Steve
>
> ----- Original Message -----
> From: [EMAIL PROTECTED]
> To: [email protected]
> Sent: Sunday, July 23, 2006 10:52 PM
> Subject: Re: RE: RE: [amibroker] Re: I am lostII
>
>
>
>
> Hi Dingo,
>
> I have no problem doing anything along the lines of powerscan
> and writing code.Ami is excellent and intuitive as far as that...
>
> The problem for a complete non programmer is when i get to
> "looping",the manuals tend to leave out thebasic steps....its
> little things like the "i" and "{ " and " = = " and "buy=0" that
> are difficult to figure out.I get the intended logic,its just
> tought to build on having no foundation...
>
> Appreciate it
>
>
>
> Allan
>
>
>
> ----- Original Message -----
>
>
> From: dingo <[EMAIL PROTECTED]>
>
> Date: Sunday, July 23, 2006 10:44 pm
>
> Subject: RE: RE: [amibroker] Re: I am lostII
>
>
> > Its Powerscan: http://www.amitools.com/
> >
> > d
> >
> >
> > _____
> >
> > From: [email protected]
> [mailto:[EMAIL PROTECTED]
> > On Behalf
> > Of Terry
> > Sent: Sunday, July 23, 2006 8:47 PM
> > To: [email protected]
> > Subject: RE: RE: [amibroker] Re: I am lostII
> >
> >
> >
> > See Steve's reply because the big difference in AFL is the
> array
> > processingas Steve explained.
> >
> >
> >
> > The books were for Excel VBA programming (macros) because
> that's
> > what you
> > asked for. VBA is, in a way, quite similar to AB when using
> loops.
> > They are
> > just constructed a little different. I learned Basic
> programming
> > first, then
> > VBA (which is also a variation of BASIC). I picked up AFL from
> > there with a
> > little intro by an experienced trader and then just doing it,
> > reading help
> > files and asking a few questions along the way.
> >
> >
> >
> > Just look at some of the basic formulas you find in AB charts
> or the
> > library. Take the ones that don't look too complicated and
> > understand them.
> > Change a few things. You'll be surprised at what you can
> learn.
> > There is
> > also (someone please help here) an automated AFL code writer.
> You
> > tell it
> > your rules and it writes code. You can then see what it did.
> >
> > --
> >
> > Terry
> >
> > -----Original Message-----
> > From: [email protected]
> [mailto:[EMAIL PROTECTED]
> > On Behalf
> > Of [EMAIL PROTECTED]
> > Sent: Sunday, July 23, 2006 13:35
> > To: [email protected]
> > Subject: Re: RE: [amibroker] Re: I am lostII
> >
> >
> >
> > Hi Terry,
> >
> > Noticed you reccomended these 2 books...I have absolutely no
> > problem coding
> > in Amibroker,but I do run into problems with coding such as
> this..
> >
> > for( i = 0; i < *BarCount*; i++ )
> > {
> > if( priceatbuy == 0 *AND* *Buy*[ i ] )
> >
> > {
> > priceatbuy = *BuyPrice*[ i ];
> >
> >
> >
> > How would one become proficient/knowledgable in writing code
> such
> > as this???
> >
> > Is this AFL??? or
> >
> > Is this sort of language inherent in every language?
> >
> > Would either of the 2 books you reccomended assist me in this
> task?
> >
> > If you or anyone could point me in the direction of a "Dummies
> "
> > book,thatwould be great.I would just like to be proficient at
> > writing/understandingcode such as the snippet above
> >
> >
> >
> > Someone reccomended Beggining Programming for Dummies by
> Wang...
> >
> >
> >
> > Any thoughts deeply appreciated
> >
> >
> >
> > Allan
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > ----- Original Message -----
> >
> > From: Terry <[EMAIL PROTECTED]>
> >
> > Date: Sunday, July 16, 2006 9:34 pm
> >
> > Subject: RE: [amibroker] Re: I am lost
> >
> > > Great book for macro and function coding:
> > > http://www.wrox.com/WileyCDA/WroxTitle/productCd-
> 0764543717.html
> > >
> > > Excel for Dummies:
> > > http://www.amazon.com/gp/product/1568840500/sr=1-
> > > 1/qid=1153099963/ref=sr_1_1/104-1895807-
> 1075905?ie=UTF8&s=books
> > >
> > >
> > >
> > > --
> > >
> > > Terry
> > >
> > > -----Original Message-----
> > > From: [email protected]
> > [mailto:[EMAIL PROTECTED] On
> > > Behalf Of MillowenaJuno
> > > Sent: Sunday, July 16, 2006 08:36
> > > To: [email protected]
> > > Subject: Re: [amibroker] Re: I am lost
> > >
> > >
> > >
> > > Hi Ton!
> > >
> > >
> > >
> > > Is there a Programming Excel for Dummies?
> > >
> > >
> > >
> > > Thanks!
> > >
> > >
> > >
> > > Millowena
> > >
> > >
> > >
> > >
> >
> >
> >
> >
>
>
> __._,_.___
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