Hi, i've got a spreadsheet with a function i would like to duplicate:

There are 2 cells, one with the Yield of a security (in this case a
bond) and another cell with the price of the security (the same bond).
Lets say A1 holds the price and cell A2 holds the yield. Now Excel
functions Price() and Yield() use more or less the same arguments and
let you calculate the Price of a bond, based on a certain yield OR let
you calculate the yield of a bond, based on a certain price. So it's a
bit like the chicken and the egg...you need a price to calculate yield
or you need a yield to calculate a price.
In this spreadsheet i'm having they allow you to type in the Price of a
security in cell A1, which will give you a yield in cell a2. The nice
thing however is the following: if you type a yield in cell a2 it will
give you the price in cell a1. So based upon your input Excel looks at
the cell where you have input the value and puts a function in the other
cell....it calculates the result and puts the original function back
into the cell where you have just typed a value, allowing you to do
further calculations with that function....So even when you type a
value in a cell, somehow excel still knows what functions should behind
it once it has done it's calculations......Maybe i'm not explaining this
very well but if someone has any idea how you can do this i would love
to hear from you ! Thanks in advance!!!!


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Jan Jansens
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Dude please try to write this more clearly - I can't follow your
question. Cut out the detail of what the formula is referring to and
just call it a formula. Too much info at the moment sorry :)


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gearoi
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sorry 'bout that....
here we go....
A bond has the following terms:

February 15, 1991, settlement date
November 15, 1999, maturity date
5.75 percent semiannual coupon
6.50 percent yield
$100 redemption value
Frequency is semiannual
30/360 basis

Cell A1 = PRICE("2/15/91","11/15/99",0.0575,0.065,100,2,0)
Cell A2 = YIELD("2/15/91","11/15/99",0.0575,95.04287,100,2,0)

Normally 0.065 is the result of cell A2 and 95.04287 is the result of
cell A1.
Now in this spreadsheet i have they let you enter a value and then the
value of cell A2 will change ( so i suppose it most look something like
this in cell A2: =YIELD("2/15/91","11/15/99",0.0575,A1,100,2,0)). But
if you type a value in cell A2 it will also change the value for cell
A1 (so that should look like
A1:=PRICE("2/15/91","11/15/99",0.0575,A2,100,2,0)) .

So somehow excel puts the formula back into the cell A1 or A2 after you
enter a value in it......without creating a circular
reference........and while leaving the result of the calculations in
the other cells.....

I hope this clarifies it a bit........


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Jan Jansens
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by the way...thanks for trying to help me out on this one.......i'm
getting desperate to find a solution myself....


--
Jan Jansens
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On Mon, 5 Sep 2005 08:00:19 -0500, Jan Jansens
wrote:


Hi, i've got a spreadsheet with a function i would like to duplicate:

There are 2 cells, one with the Yield of a security (in this case a
bond) and another cell with the price of the security (the same bond).
Lets say A1 holds the price and cell A2 holds the yield. Now Excel
functions Price() and Yield() use more or less the same arguments and
let you calculate the Price of a bond, based on a certain yield OR let
you calculate the yield of a bond, based on a certain price. So it's a
bit like the chicken and the egg...you need a price to calculate yield
or you need a yield to calculate a price.
In this spreadsheet i'm having they allow you to type in the Price of a
security in cell A1, which will give you a yield in cell a2. The nice
thing however is the following: if you type a yield in cell a2 it will
give you the price in cell a1. So based upon your input Excel looks at
the cell where you have input the value and puts a function in the other
cell....it calculates the result and puts the original function back
into the cell where you have just typed a value, allowing you to do
further calculations with that function....So even when you type a
value in a cell, somehow excel still knows what functions should behind
it once it has done it's calculations......Maybe i'm not explaining this
very well but if someone has any idea how you can do this i would love
to hear from you ! Thanks in advance!!!!

Without seeing the s/s I can't be certain, but it sounds like there's
probably some VBA code in operation here which is being driven by a
Range Selection Change Event.

i.e. when you enter a value in one cell, the Change event of that cell
is fired and puts a formula in the other cell, and vice versa.

You could check by looking in the VBA window ALT-F11, double clicking
on the sheet name in the VBA Project Explorer pane, and then seeing
what is in the Worksheet Selection Change pane over on the right.

Rgds



__
Richard Buttrey
Grappenhall, Cheshire, UK
__________________________

hi ! thanks for your reply....you were indeed right...there is quite a
bit of VBA code behind this spreadsheet. Most of it is password
protected so i can't see how they've actually programmed it..... This
probably isn't the right forum to ask whether someone has any idea how
to program this in vba ? I know some VBA but this goes beyond my
knowledge..... Tx all!


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Jan Jansens Wrote:
hi ! thanks for your reply....you were indeed right...there is quite a
bit of VBA code behind this spreadsheet. Most of it is password
protected so i can't see how they've actually programmed it..... This
probably isn't the right forum to ask whether someone has any idea how
to program this in vba ? I know some VBA but this goes beyond my
knowledge..... Tx all!


Just rewrite the s/s - much easier than trying to understand someone
else's quote often :)


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gearoi
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It's not a question of "stealing" or "using" someone else's code....it's just that it's proven to be a very nice functionality for a lot of spreadsheets that i have...would just love to be able to create the code myself to duplicate it but unfortunately i'm not enough of a wizard in VBA to be able to do so ! ;)

That's why i thought i asked to the people who DO know ! :)