Monte Carlo Simulation |
Monte Carlo Simulation - Excel |
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I am trying to simulate some stock return data with the random number generator.. I have 7 stocks that I want to simulate with a multivariate normal distribution where the inputs are the mean vector and the covariance matrix..
The random number generator that comes with Excel does not have a feature for multivariate normal distributions and I am trying to avoid having to buy a new program or add-in... Is there any way to do this? maybe using vba code?
Thanks in advance.
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I'd like to do this in Excel, but I can't figure out how to have a randomly generating non-repeating macro with text values in cells.
So right now I have a column of 8 values and need matrix of 7 columns by 8 rows next to it.
I've found this thread that has one for numbers, but I can't figure out how to do it for text values...
http://www.excelforum.com/excel-prog...m-numbers.html
Thanks all!
The following can be used to simulate the same, and avoid having to achieve the same with VBA's IsDate function:
STEPS:
1- Format the column (ex A) as text
2- Formula to check for valid dates:
=ISERROR(DATEVALUE(A1))
Random question i have a large Excel Workbook (which is protected) and has over five sheets on it - however one sheet has randomly decided not to scroll... yes i know sounds random! If i use the cursor and down arrows the selection just disappears off the screen.
The page will scroll if i filter by one field, but not if i select (All) for all filters.
All other worksheets scroll fine.
Any suggestions?
Thanks in advance.
Cheers Kaite
so I thought I would try again.
Does anyone know of an Excel template--or a small stand-alone
program--that will calculate the interest/principal breakdown when
payments are varied in amount and frequency? Free or low-cost, please.
I need one that will work on my Mac/Office 2004. I will need to print
out periodic reports.
Here is the way the previous poster described it:
"Excel template: Loan Amortization for random/irregular payments,
figures days
between payment dates.
I have a loan with a variable beginning balance and irregular payments
with
annual large payment. (based on collections)
Would like to enter payment and date.
then Excel would figure days since last payment, interest amount,
principal
amount, Ending Principal balance.
And total interest paid, total pricipal paid
If I change the starting principal, excel would recalculate all
entries."
Thanks very much.
jumps way down the page to what appears to be a random cell. The one i
originaly typed in remains blank. spreadsheet was previously ok this has
just started to happen.
help please
thanks
The cell turns blue and then wherever I move, it highlights those to.
No matter where I go on the page. If I Alt-Tab and work in another
program on my computer, that excel page keeps highlighting wherever
I move even in those other programs (I know this sounds confusing).
When I return to excel thousands and thousands of cells are blue.
The biggest problem is that the highlighting won't turn off, no matter
what. I can't select anything from the tool bars, do any work on the sheet or close the program.
I can close it only with the task manager but when I open it again,
the cursor is still stuck in the highlighting mode and won't perform any
other functions.
Do you think this is a problem with my computer, the excel program? I have changed my mouse and this didn't help.
Is there some shortcut to turn off this highlight feature other than restarting
my computer. Which is the only current way I can get rid of it.
Thanks for any advice,
Here is the example.
Jan2011 Feb2011 Mar2011 Apr2011 May2011 Jun2011 Jul2011 Aug2011 Sep2011 Oct2011 Nov2011 Dec2011 ----------- ----------- ----------- ----------- ----------- ----------- ----------- ----------- ----------- ----------- ----------- ----------- Product XXXXX Actual/Forecast : 174 1674 574 574 524 524 524 524 524 728 728 728 New Purchases : 0 0 0 0 1002 0 0 0 0 0 0 0 Goods In Transit: 0 1506 0 0 0 0 0 0 0 0 0 0 Other Movements : 0 0 0 0 0 0 0 0 0 0 0 0 Closing Stock : 1270 1102 528 -46 432 -92 -616 -1140 -1664 -2392 -3120 -3848 Week Stock in Hand ? ? ? ? ? ? ? ? ? ? ? ?
So, in Month of Jan2011 the Closing stock is 1270, need a formula to calculate how many weeks will this stock cover look at future forecast.
I'm still new here but after I searched the forum I found great work done
for the needy like me.
So I'm so hopeful
I'm concerned with making a timetable for my school which we used to do it manually
I need a code to distribute each teacher timetable with the following basis:
the number of classes_ the teacher is assinged to work with_multiplied by the number of periods ( which is changeable ).
e.g ; Teacher 1 has 2 classes (1-1 &1-2). Each class should be visited 9 timea a week.
So Teacher 1 should work 18 periods a week
the distribution I need 'd look like the example in Sheet("timetable")
Please don't let me down
any help 'd be greately appreciated
I've been having a strange problem lately. I have a fairly lengthy macro that works perfectly most of the time. Occasionally it will run as expected but as soon as the macro ends, excel becomes unresponsive to mouse-clicks. When I click anywhere (trying to select a cell, or an excel menu item...clicking anywhere in excel) I'll get the a 'ding' system sound and nothing will happen. BUT, if I use the keyboard arrow keys, I can see that the active cell selection moves accordingly. Then it gets really strange - when I have a cell highlighted and press any key to input text, it gets duplicated. So if I press "s' it will input "ss" into the cell, and then when I press enter it will auto-move to the next cell down, but nothing ends up getting saved into the previous cell.
I don't understand what's going on at all. I can't think of anything in my macro that would have these kinds of effects. I've made sure that screenupdating is turned back on at the end of every procedure. If I go into the VBE, I can manually run procedures and they all work fine. The only way I've been able to get back to normal is by force closing excel altogether and re-opening. Any ideas?
______________________
Still having trouble, and the same thing is happening with this workbook on two different computers, so I don't think it's a hardware, or OS specific issue. When it gets locked up like this, I can still do anything in the VBE (edits cells, run macros, etc.) with no problems. If I'm in the excel window, I can click alt on the keyboard and the shortcut keys for the menu come up, but I can't go deeper than that by clicking the letter shortcuts, they do nothing. If I use the delete key to delete the contents of a cell, then it gets deleted. But if I type anything else (numbers, letters, or symbols) then it types 2 instances of the key every time, yet when I hit enter, nothing changes in the cell. I also can't really bring focus to the excel window if something else (ie. the VBE) is on top of it, clicking into the excel window just gives the little system 'ding' sound and nothing happens.
If I hit the save button in the VBE (since I can't click anything in the excel window), then it seems to snap out of it and go back to normal. I tried searching for anything simmilar to this and can't find anything...
Any help would be much appreciated. This is driving me nuts!
But I did so in a beta file (test file). The real file has become so big (103MB!) that Excel cannot even open it anymore! The file contains archive info that we do not have anywhere else.
Is there anyway then to open the file or to reduce its size without opening it (through magics...)? I just honestly don't know how to retrieve that info before deleting that file.
Thank you very much for your help.
Im looking for a vlookup formula which will give me the maximum number from a list which contains multiple matches, i.e.
Lookup number 1 from column A, then give me the largest number from column B
example table:
A B
-----
1 5
2 2
1 11
3 2
4 5
the result would be 11
thanks all!
feature) to the rows and columns I'm actually using in an Excel 2003 Pro
spreadsheet?
James
where each cell/column begins and ends. However there are a few cells where
the break with the next cell does not show the line.
I have highlighed the cell in question, gone to format/cell/borders and
everything looks fine. Black color + format border shows square with all
sides of square showing.
Any thoughts on how to fix these few random cells.
Thanks
But I do not want to insert any sheet for different dates & also the format will not be copied & paste in the same sheet. Just at the place of Date the date will be changed & the datas will be entered manually for each day.
In future, when I shall put the date, the datas will show that particular date's datas only.
Can anyone help me ?
I need some help in this:
In a excel workbook when I copy a worksheet (to duplicate with other name) there is always a name conflict and so I have to say yes (maintain the name) or say no (and excel ask for other names) many times (sometimes more than 50 times pressing the enter button. Its possible to disable this feature?
My best regards and Thanks in advance.
Melnik Kuhn
I am trying to make excel automatically add a leading zero to values which are 5 digits long;
i.e. number input is 15185, then excel automatically changes it to 015185.
If I put a Customer Number Format of 0##### it works, however, a user could put any length of number into these cells, and if the number is less than 5 digits I don't want a leading zero.
Is there any way of writing a small macro to sort this out.
The numbers would be input into range B16:223.
Many thanks,
Andy
Could you be so kind as to provide some code that will enable me to display a text box on a userform rounded up to 1 decimal place.
Where am I going wrong....
it calculates the number entered in textbox1 and divides it by a value that changes in cell O26 but the answer is in about 8 or more decimel places.
Only need like 65.3 as an answer not 65.277756942
This is the code ive used.
Private Sub CommandButton1_Click()
TextBox2.Value = Val(TextBox1.Value) / Range("O26").Value
End Sub
I have 6 sheets to count and all the names are in column A (from A1:A100) on each sheet. The names are not in a particular order.
On sheet 7 I want to have a cell beside each persons name that counts the number of times their name appeared on the other 6 sheets.
For example Sheet 7 (called total) would have
Joe 5 (where 5 is the outcome of the formula I'm looking for to count all the times "Joe" appears on sheets 1-6).
I have it counting per sheet with =COUNTIF(A1:A130,"name") but this is not quite what I am looking for.
Thanks in advance for any advice.
Edit: I am using Excel 2007 w/ windows XP