Comments on: Replacing the Analysis Toolpak Addin – Part 1

By: Sean Riddle

Sean Riddle — Tue, 30 Jan 2007 05:45:00 +0000

I figured it out. It works as-is, except for the typo “&Anumber1?. I had to learn more about array formulas. I was using another one and didn’t need to hit CTRL-SHIFT-ENTER, but I did with this one. Thanks a lot for the collection. Sean

By: Sean Riddle

Sean Riddle — Mon, 29 Jan 2007 08:50:00 +0000

I got here searching for a GCD replacement. I tried your code but can't get it to work. It looks like there might be a couple of typos. "number2? only appears once, but I think it should be in there twice. There is also a "&Anumber1? that looks wrong. Here's my attempted fix, but it always returns "1?:

=MAX(IF((MOD(B1,ROW(INDIRECT("1:"&A1)))&MOD(A1,ROW(INDIRECT("1:"&B1))))="00?,ROW(INDIRECT("1:"&A1))))

Any ideas? Thanks-

Sean

By: sgarcia

sgarcia — Thu, 09 Nov 2006 20:35:00 +0000

FYI,

Microsoft annonced that the Anlysis Tool pack will be integrated into Excel 2007. Thus, this should fix the problem if someone can wait...

By: Jonny

Jonny — Thu, 16 Mar 2006 11:03:00 +0000

Thanks, the information provided above has definately shed some light on my problem, but what exactly do mean by “internationalisation”?

By: Pavan

Pavan — Tue, 27 Dec 2005 06:07:00 +0000

Can you provide replacement function for XIRR also

By: cal

cal — Thu, 01 Dec 2005 22:20:00 +0000

I am a printer that is trying to print a medical form that is read by the an OCR. Each page has a unique contract number like 567301 then there is a column that has a series of 24 “bubbles” (like on an SAT test). The bubbles are colored in based on converting the contract number to a binary number. Any ideas on how I could use Excel to print this?

By: Isaak

Isaak — Fri, 14 Oct 2005 23:30:00 +0000

The function provided for erfc(x) does not match the table values. Consult any reference if you disagree. There is a useful approximation to the Q-function which can be converted to erfc(x). It is

Q(x)=(1/((1-(1/PI()))*A36+SQRT(A36^2+6.28318)/PI()))*(1/SQRT(2*PI()))*EXP(-(A36^2)/2)

Using the conversion erfc(x) = 2*Q(x*sqrt(2)) gives efrc as

erfc(x)=(1/((1-(1/PI()))*A36*SQRT(2)+SQRT(2*A36^2+6.28318)/PI()))*(2/SQRT(2*PI()))*EXP(-(A36^2))

One additional comment; the complementary error function is a simplification of the Q-function which is the integral of the tail of a Gaussian for values above x.

By: Michael Markov

Michael Markov — Wed, 18 May 2005 15:22:00 +0000

Try the following:
The binary number (in D1) must be stored as a string, otherwise the last bit is truncated by excel

=SUMPRODUCT(2^(ROW(INDIRECT("1:"&LEN(D1)))-1),VALUE(MID(D1,LEN(D1)-ROW(INDIRECT("1:"&LEN(D1)))+1,1)))

I am not sure what the maximum size binary number could be handled, but there will be one due the 15 digit accuracy limit of 2^...

The ROW(Indirect()) allows for a variable length binary number. Is there a simpler way to specify a variable length array of consecutive integers?

By: IKnowNothing

IKnowNothing — Tue, 17 May 2005 19:26:00 +0000

How do you get any of these functions to work?

Pasting these funtions into excell gives me errors that I do not have the knowlege or time to fix.

Say if have a 16 bit binary number 1111111111111111 typed into cell A1, what formula in cell B1 would give me the decimal equiv?

Any assistance would be greatly appreciated?

By: Frank Kabel

Frank Kabel — Tue, 21 Dec 2004 14:40:00 +0000

Hi Asser,
great. I just hoped something like this would happen. I'll update the table in the original post to include this function as well (and I'm hoping for the other 3 functions...)

Thanks
Frank