Function to perform subsequent subtraction in BEx

Hello Experts,
I want to build following standard deviation formula in BEx.
std = R-Bar/D2, R-Bar defined as the sum of the absolute values of the differences between the value and the value before it divided by the number of values (the number of values will be the count minus 1 since the first value does not have a value to take a difference from). D2 is a contant 1.128.
I don't get any function to perform subsequent subtraction.
, in spreadsheet it is something like this.
Column D : Actual Test Results of Lot 'L1' for each sample (A to G)
Now I need to calculate its standard deviation using above formula.
Column F : E3-E2, E4-E3 and so on. In E2, value will be Zero as it's the first record.
Column G : Absolute of Values in Column F.
Cell G10 : Sum of all absolute values (60 in this example)
Cell G12 : Sum/ (Count-1) i.e. 60/(7-1) in this example. A to G are 7 samples, so count is 7.
G14 : G12/1.128
So, G14 holds the desired result of standard deviation.
When I remove Sample column from my report I should get this result in standard deviation cell.
Lot Number
Standard Dev
L1
7.598784195
Appreciate your help.
Thanks.

Hi There
So you want to play with designer, then you have to create a lot key figure selections and formulas, you have to create as much as samples you may have. If the max number of samples can be seven then you have to create seven key figure selections and restrict each one of them with samples characteristic value. You will create also six formulas.
An example:
KYF 1: Test Result , restrict Samples : A
KYF 2: Test Result , restrict Samples : B
KYF 3: Test Result , restrict Samples : C
KYF 4: Test Result , restrict Samples : D
and so on...
Formula 1: KYF 2 - KYF 3
Formula 2: KYF 3 - KYF 4
Since samples will not be in the analysis then you won't have any issue with the results.
Thank you
Yiannis

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smon asked: if you remove the pragma statement, does it work then?No, it does not, at least not, if I call the function from the outer function. In this case the insert statements in the inner function are not committed.
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sb92075 said:COMMIT inside LOOP is sub-optimal implementation (increases elapsed time) & can result in ORA-01555 error.Thanks, that was very helpful; I changed my code to commit outside of the loop, just before the return statement and it performs a lot faster now.
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Then, in the html page containig the form, Iredefined the
"realizarAlRemitir()" function as follows:
<script language="JavaScript" type="text/javascript">

</script>
This function "draws" using a modified spry effect a div tag
that effectively blocks the whole form so that the user cannot
modify the information or press again the submit button, while
giving her or him appropriate feedback that indicates that the
submission is being performed correctly.
This is the sample page:
http://192.168.10.2/nuevawebdesarrollo/eventos/conferencia.aspx?id=mbatc
Finnally, my question is whether or not there is a less
intrusive way to do such a thing, meaning, not having to touch the
javascript files code. I didn't find one, for instance, so will
some functionality like this be added to the framework? And,
lastly, once the framework is embedded inside Dreamweaver, will we
still be able to make such changes, without generating some trouble
that will cause the framework to stop working correctly with
dreamweaver.

Hello Marin,
Thanks a lot for your reply. I´m really sorry I made the
mistake of giving you our internal address. I'm used to just
copy/pasting it and sending the link to be reviewed. In spite of
that, you seem to have gotten the idea, perfectly fine, so thanks
again for making the effort to reply to a flawed question.
This is the public link, so It should work well for you:
http://www.esan.edu.pe/nuevawebdesarrollo/eventos/conferencia.aspx?id=mbatc
It's in spanish, but I don't think language matters to
understand how it works. Your solution is perfect, as it
effectively stops the user from pressing the submit button more
than once.
Still, the final part of my question holds. We are inserting
an event, after the submit button has been pressed and,
consequently, after we've got your javascript files running. So,
the only way to insert such an event is messing with the files. Or
can it be done with our own scripts? Will there be a less intrusive
way to do such a thing, meaning, not having to touch the javascript
code of your source files to add events or functionality? I didn't
find a way but that doesn't mean that there isn't one, right? I'm
worried that now that we have dreamweaver CS3, if anybody needs to
do such a thing, dreamweaver will no longer recognize the files and
it will look like in the preview window, that we didn't insert it,
even if it still works perfectly in the browser.
Thanks again,
DANTESAENZ

Where to put a function to perform only once?

Question #1: I am writing an applet, and as part of it I have created a custom canvas class which extends the canvas class... When this is created I would like to perform a custom calculation of the size that it should be. Where is the best place to put this function? Right now I have put it in getPreferredSize(), but I'm afraid it might be called everytime i scroll or resize or whatever?
Question #2: When I load my IE browser and go to the page with my applet, then call the applet.getSize() function it works. When I hit the refresh button on IE, getSize returns 0. Is there a workaround to this? I have the getSize() in the init of the applet...
Thank you!
Rusty

Hi
About #1 question, the best place is at constructor class, "once a time" right? but getPreferredSize really is called so many time as needed, you know the reason. The simple workaround for #2 question is to store applet dimension at the very first call, also at applet construction.
Regards.

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