VBA Scenario Testing in a financial model - excel

So I'm new to VBA and trying to automate my financial models. I've got this large complex stock valuation model on excel that reads either string bear, bull, or base from a single cell that has a dropdown that has the options of bear, bull, or base. The model will use different inputs depending on if the user chooses the strings bear, bull, or base, and the model will output different values of the stock respectively. In a separate sheet, I'm trying to display, in 3 separate cells, the output of the model (the value of the stock) in the bear, bull, and base case respectively. I could just make 3 models; a bear, bull, and base case, but I thought that might be too bulky, and I just want 1 variable model, instead of 3 fixed models. I'm wondering if VBA allows for a "scenario" type of ability in which it sets a specific cell to a hypothetical value and then takes the value of another cell, without actually modifying my model.

I think I understand what you want -- but it is still unclear. Perhaps provide an example?
One way I'd do it would be to have a fourth dynamic model. This extra model is based on the hypothetical scenarios (e.g. another column for Bear/Bull/Base for each stock -- we can call this extra column BBB2, and the original one with drop down menus for the user BBB1). The fourth model is based only on data from BBB2.
By default when the sheet is opened, BBB2 = BBB1. When a user changes BBB1, BBB2 gets updated. Then, I'd add a function to change everything in BBB2 to bull or base or bear. From there you could manually change a few stocks and see the results in the fourth model.

Related

Search formula for best text match among two excel lists

I have a long list of products (+20,000 items) of surgical instruments. Sometimes I receive requests for different names of these products which is impossible to manually match in my list.
I was thinking of a formula to find or suggest the closest result of match for the common words in each cell.
I have created this formula:
=INDEX('Products'!G:G,MATCH((("*"&LEFT(A2,5),'Products'!G:G,0))
(where Products G:G refers to my long list.
it gave some results correctly but more than 80% of the result came back with false results.
please see the attached image to show you the result.
is there is a way I can get more accurate result?
or I was thinking of finding major category of each item such as:
Category 1: Scissors, Retractors, Knives, etc.
Category 2: Straight, Curved, Angeled, etc.
Category 3: Sharp, Blunt, etc.
Category 4: 10mm, 130mm, 24cm, etc. (size)
which is easy for me to do it.
then use the same formula but with referring to the common words..
something like:
=INDEX(Products!G:G,MATCH("*"&LEFT(E2,5)&"*"&F2&"*"&G2&"*",Products!G:G,0))
where E2, F2, G2 refers to the categories..
I tried but it gave false results as well.
I urge you in the strongest sense of the word to spend some time creating a good quality master table and then spinning off 1 table for each category.
make use of clean(), trim(), proper(), heck, if you need to copy the data in notepad++ and enable view all symbols then switch between ansi utf utf8 wtf omgwtf or any other encoding to ensure you dont have any hidden special characters than do it.
you have 4 categories, so that's 4 1 column tables. name them. no duplicates. no trash. no junk. sort your data. nice clean names/words/whatever you categorize by. if you absolutely must add an index or key column then go ahead but do yourself a favor and stop there. use a different table to deepen your relationships.
next step is to to create comboboxes. i'm not sure why but the combobox in excel is not the same combobox in the vba editor. you want the one in the editor. you can make a fancy user form or you can make a minimalist text box design. whatever you fancy. just make sure the combobox has a field for RowSource in the properties. for whatever reason i don't get that option if i am not in the vba editor when i create the box.
you're almost gauratneed to want drawmodal = false on every user form you make for these boxes
you probably really don't need more than 4 boxes but it depends what you're doing so that's up to you. name your combo boxes.
verify each box has: matchentry = 1-fmMatchEntryComplete
i recommend: style = 0 - fmStyleDropDownCombo
this will allow you to begin typing and autocomplete the first match and also let you select from a drop down list, starting with the the first match of the name you've typed.
you can set the number of elements in the list. default is 8. if you have a slow computer than i wouldn't push it much. if you have a best then give it a shot.
you can also change fonts for easier reading and a bunch of other format changes.
now the this is the most important part - RowSource will be one of those 4 tables
now that i've given instructions, let me explain why. some businesses don't have the best practices and i'm currently with one that's using an oracle erp solution for data management but the front end isn't used. data entry is done in excel and loaded into oracle using batches. lookups in oracle continue to be a psychological barrier for the ap/ar teams so i did exactly what i suggested here but took it a few steps farther.
i pulled the vendor master and i pulled teh customer master
i cleaned the data and compiles simple pure clean 1 column tables
then i created a form for the comboboxes
first came ap with vendor name
then vendor number
then vendor remittance location
our orderering facility number
selecting a vendor name populates the vendor number box with the possible vendor numbers. same for remittance location and ordering facility
i pulled a year's worth of transaction data and created a gl table. some vendors have only ever used 1 gl acount. some several. there's a % number next to each gl. that represents the value of transactions posted from that vendor to that gl for the last year.
next up a date picker and text boxes for invoice fields.
get it nice and tight on a form, set the tab stops, add a commit button and all of a sudden we have a front end excel platform that performs better than oracle - because people use
i haven't finished the ar side but it'll get done and i'll the angels will be rejoicing and singing my name for years to come.
1:1 matching with autofill and drop down functionality you can't beat it. that's what you get with my suggestion.
best of luck!

Generating a unique identifier list with multiple tables & criteria

I'm not a coder, just someone who uses excel for basic estimating functions at work. However I've found myself in need of a complex list or index system.
Background/Intent: (Skip below if doesn't matter.) In an apartment building construction they build buildings like opened books - mirror images of 2 bed 2 bath apartments, for example. There is a standard "typical" unit and then the mirror image across the hall, the "reverse" unit. The door swings are all opposite from one to the other. My job is to figure out how to give each door a unique identifier code based on: Bldg No., Unit Type, Door No., Door Swing (left or right.) The raw data tables are provided below.
I've attempted to clean this up as much as possible, but there are two steps (I think) to this process.
Step 1:
The raw data table is on the left. My output field is on the right. I want to be able to select a drag down box, like data validation list, and select the building. Then a formula (which one?) spits out a list of every unit type per building. For example, Bldg 5 has 2 each of "A1 Typ." How do I get the formula to recognize that if there are 2 of them, to produce 2 separate lines for "A1 Typ." And so on and so forth until all 41 occurences/units have been accounted for and labeled appropriately. Some occur once, some multiple times, and some zero.
Step 1
From there, Step 2.
I want to use this output field again to automate another sequence, this time pulling from a different table, see picture. Now, depending on the unit type under the "type" column, I want it to expand each unit type showing each indivudual door number (1,2,3 etc through 12) and if it's an L (LH) or R (RH), and if there is more than one, to list out each occurence. (what formula?)
Then the decriptor text that will pop up under "DOOR LABEL" column would just be a joining of several fields to give a unique identifier. (suggestions?)
Step 2.
Easy right? Is this too much for excel, or can this be done?
Thanks so much for considering helping me out!

Requesting help editing a formula in a TM1 worksheet

The said TM1 worksheet uses the DBRW formula to write values that users enter, to a cube, and also uses the same to fetch the value and display it in the worksheet. The values in the cube consist of movie codes such as 7500023. This movie code can be mapped to a movie title in a dimension DIM. It is to be noted that this movie code and the movie title are both aliases of the principal name used in the dimension, which runs along like 0007500023 (The movie code with zeroes preceding). I'd like the movie titles to be displayed in the worksheet instead of the movie codes.
I tried using the SUBNM function, but it opens up a subset editor and also doesn't write values to the cube like DBRW. So, that's ruled out.
The DBRA function seemed perfect when it came to fetching the movie titles from the dimension DIM. But this doesn't write the values to the cube.
Is there any way I can combine the DBRA and the DBRW function in a formula or is there an alternative function for this purpose?
I will add an extra column which will extract the alias = DBRA.
And then I will base your IF statement on the new column.
Otherwise, if you don't need the code, then why not use the alias in the first place? Export data with the alias on. Then you don't even need to retrieve the alias, because it's already there.
It just doesn't make sense to put them both in one formula.
When you recalculate - excel assess the formula once.
But you're expecting it to assess it multiple times. (hence the circular reference)

Which is the most flexible way for end-user to create a report querying an SSAS Cube?

I know that you can query a cube by connecting from Excel to Analysis database and using formulas like cubevalue() or cubemember().
I also know that after converting the power pivot to formulas, you can access the attribute and the value related only by writing a text.
Example: for Branch Dimension, instead of writing
cubemember("connections";"[DimBranch].[Name].[All].[London])" )
you can write in the cell only "London". However, this won't work if you have a parent-child dimension and want to retrieve the amount for one of the intermediate levels.
Did anyone know about how can you avoid writing these formulas directly by the end-user ?
I´ve done this several times. I can describe the approach I´ve used in the past.
You need to define the input from the user, for example Fiscal Year, Fiscal Period,... and create a tab with a friendly layout for this solely purpose.
After that you create your pivot/pivots against the cube/s you want to query with the data extraction that you need (obiously these pivots will refer to the Fiscal Year and Period). Define the desired layout for these pivots (as you want them you be shown). Once You´ve done this, you need to convert into formulas these pivots, including parameters. You´ll see that values placed in the measure box contain a formula cubevalue which makes reference to the connection itself and several cubemembers. It makes reference to the measure as well.
The trickiest part comes now, when you need to modify your cubemember function to take value from the input, something like cubemember("connections";"[DimBranch].[Name].[All].["+MyReferenceCell+")" ), and you have your dimension picked up from a value entered by a user.
If you have as a matter of fact, serveral pivots referencing common dimensions, you need to make the reference this modified cubemember cell affected by user input, otherwise you have to modify all affected cubemembers in your pivots converted to formulas.
This has a really good advantage: depending on the excel´s version, all pivots are automatically recalulated if you change the value in the user´s input cell without hitting the refresh all button.
On the other hand, the disadvantage comes when your report in excel contains a list of values from a dimension which can grow. After converting pivots into formulas those new values for the dimension are lost. That´s why you can always place a control if you have the total value int he pivots regardless the dimension value.
I hope this helps.
Regards

Correlations/Data Mining in Microsoft Excel 2003

I have an Excel spreadsheet where each column is a certain variable. At the end of my columns I have a special last column called "Type" which can be A, B, C, or D.
Each row is a data point with different variables that ends up in a certain "Type" bucket (A/B/C/D) recorded in the last column.
I need a way to examine all entries of a certain type (say, "C" or "C"|"D") and find out which of the variable(s) is a good predictor of this last column, and which are better predictors than others.
Some variables are numbers, others are fixed strings (from a set of strings), so it's not just a number/number correlation.
Is Excel 2003 a good tool for that, or are there better statistical programs that make this easier? Do I create a Pivot/Histogram for each category, or is there a better way to run these queries? Thanks
You can make some filtering, especially to clean the data (I mean, to change the data values into one type, string or numeral) using microsoft excel. Execl also makes some data mining. However, for the kind of problems you have, a good tool that I recommend you is WEKA. Using this tool, you can make associative classification prediction (i.e., class association rule mining)of all data instances(rows) and therefore, you can determine which items fall belong to A/B/C/D. Your special attribute will be your class attribute.

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