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Excel VBA Course
[80% Discount] Excel VBA Course - From Beginner to Expert

200+ Video Lessons
50+ Hours of Video
200+ Excel Guides

Become a master of VBA and Macros in Excel and learn how to automate all of your tasks in Excel with this online course. (No VBA experience required.)

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(80% Discount Ends Today!)

Multiple Linear Regression In Vba

Hi everyone,
I would like to run a multiple linear regression in vba. I have one dependent and three explanatory variables. I will have to use a macro of some kind, since I need to run too many regressions to do it manually. To simplify things a little bit:
- There will always be exactly three independent variables
- There are no missing values
- The data is allways numerical
I've already got four ranges defined: Yrange, X1range, X2range, X3range. I would like to take these ranges as input parameters for the regression model. The only two parameters I need are Sum Square for Regression (SSR) and the degrees of freedom. I understand that you can use excel's matrix formulas to calculate some of the input parameters, but one doesn't really get around vba. Does anybody know where I can find a (simple) source code allowing me to conduct a regression with three input parameters? Many thanks in advance


Excel VBA Course
Excel VBA Course - From Beginner to Expert

200+ Video Lessons 50+ Hours of Instruction 200+ Excel Guides

Become a master of VBA and Macros in Excel and learn how to automate all of your tasks in Excel with this online course. (No VBA experience required.)

(80% Discount Ends Soon!)

View Course




Similar Topics







So I've got some data, which has the approximate form of a sine function. I want to find all the x-axis intercepts. I tried using the intercept function and swapping around the y values for the x values, but it only returns 1 value (so I'd guess it uses a linear regression to estimate a single line through the axis).

I was thinking of trying a nested if/and statement but I haven't quite figured out how to do it. Basically I want to identify the two values where it switches from positive to negative and also indentify the values where it goes negative to positive, I can then fit a straight line between them to find a better approximation of the intercept (though it might not be necessary). Preferably I'd like it all one function as I'm not doing it in VBA (I might do later though, we'll see).

Can anyone suggest how I'd find these value or the x-intercept. Any help would be greatly appreciated.


I am trying to sum all numbers <0 using the SUMIF formula in Excel 2003.

FORMULA: =sumif(range,criteria,sum_range)

I got it to work, but I have cell ranges to total that are not next to each
other (such as A5:A15 and C5:C15).
When selecting the ranges for the formula, Excel writes them A5:A15,C5:C15

because of the comma (,) between the cell ranges Excel is reading the A5:A15
as the range and C5:C15 as the critera. How can I get this formula to allow
me to select multiple cell ranges?

All help is appreciated.

Thank you.



From limited experience I know that excel calculates dates via serial numbers.

I have formulas to add a number of days to a cell containing an entered date and display the resulting new date (ie. 03/01/2011 (c34)+11 = 03/12/2011)

I am seeking to leave resulting formula cell blank until a date is entered in the input cell. Currently when the input cell is empty the formula cell obviously displays 1/11/1900 using the above example.

What conditional format would achieve leaving the formula cell blank until date data in entered into the source cell?

Hopefully a simpler question for your experience level than mine.


Regarding Charts in Excel:

Is there a way to have the Min and Max values adjusted dynamically for the Scale of the values being displayed ??

I know that I can use named ranges to display various sections of data -- month by month, or quarter by quarter, for example.

But when the value of these ranges vary greatly from section to section I end of having to manually go and adjust the Min and Max values of the chart scale.

For example, if I was looking at a graph of the S&P 500's prices last November, a Min and Max range of 750 to 1200 would be fine. But if I had a dynamic range established and scrolled over to view the S&P 500's prices for this past February, I would need a Min and Max range of around 650 to 850.

Is there a way to have these Min & Max values adjust automatically depending on the values being displayed ??

Thanks

StanSz


Hi All,

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


I have a textbox in my userform where anything typed in the box is entered into cell A2 in my worksheet. However, multiple lines of text are not properly displayed in my worksheet. I have enabled MultiLine and EnterKeyBehaviour in the properties window of the textbox so I can type multiple lines in my textbox. The problem is that when I press the button to enter the text from my txtbox to cell A2, the cell doesn't actually display the text in separate lines. It just places a square symbol in the place that enter should have been pressed and the text should have been split into separate lines.

How can I get the separate lines of text in my textbox to be properly displayed in a cell? Thanks for your help in advance..


Posted this on the Ozgrid forums, but haven't gotten any help yet, so I thought I'd try here too!

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!


Hi All,

I've been struggling with this for a while now and can't believe how hard it is!. I've searched on this site and on others to get some clarification but to no avail.

It's pretty simple really. I have a user form which contains a tex box for a user to input the date I want the format to be dd/mm/yyyy but can't find out how to set the format of the text box to this.

Please can someone give me a bit of guidence or link me to a good rescource if missed it in the search.

Thanks in advance.

G


I am trying to get my macro to do this on open. Check if a1 is empty, if its empty run another macro (which is an input box to put something IN a1), but if A1 has something in it, DO NOTHING.

I keep getting errors, saying I'm not formulating my if statements correctly.

This is what I have:
Code:

 
Private Sub Workbook_Open()
If Range("a1") = "" Then macrox
else do nothing
End If
End Sub





Hi everyone, this is my first post here. I consider myself a more advanced Excel user and can navigate my way around fairly well. I've written a spreadsheet and am wondering if there is a way to permit data entry in a cell, contingent upon another cell being populated.

In simple terms, you can't enter data in cell X, until cell "Y" has been populated with something.

Can anyone help with this, because I can't figure it out....


I have an Excel workbook that was created by a former coworker. It includes a macro that, among other things, displays a message box about the 2008 file. The macro runs as soon as the file is opened. I'd like to access that macro to correct the date to 2011 and see what else, if anything, it's doing for me (it doesn't appear to do much). I can find references to creating macros to hide and unhide rows/columns and I found ways to delete all macros in a workbook, but I cannot find anything about unhiding a macro without knowing its name.

Does anyone know of a way to unhide this macro?

Thanks!


Using VBA, I am trying to retrieve the contents of the Source of a web page (the same as would appear if you right-clicked on the page and chose "View Source") into a variable so I can work on it in VBA (using InStr, etc.).

The problem is I can use code such as
strHTMLText = ie.Document.body.innerText
or
strHTMLText = ie.Document.body.outerText
to retrieve the code, but in either case only part, not all, of the source code is captured. I need ALL the code. Is there some kind of code such as ie.Document.body.allText or similar that would perform this function?

Much obliged!


I run a small business. I want to start keeping track of inventory using a barcode system.

I know Excel "ok", but I don't know programming.'

I'd like to be able to do something very simple (for now)...

For example...if I had PRODUCT / CODE / INV VALUE

A - CODE A - 5
B - CODE B - 11
C - CODE C - 14

I would want to be able to click a button (or scan a code for) : ADD +1 or REMOVE -1

...then scan the barcode on the product (A) and have it add or remove one, respectively. So, if the row for A is:

A - CODE A - 5

I choose "ADD" (with a button or scan code), then scan the barcode, and the spreadsheet automatically finds the code in the sheet, and changes the corresponding inventory value:

A - CODE A - 6

Does that make sense? How might I go about doing that?


I want a conditional formula that if I input anything into Column D, then the corresponding cell in Column B will get a strikethrough:

So if I input a date in Cell D7, then Cell B7 will receive a strikethrough.

Thanks

Louis


Hi All,

I have the below code which deletes all items from a listbox and my excel sheet which is the source for populating that listbox. I am using a option button style for my listbox and the selection style as single .i.e. you can select only one item at one go in the lisbox. I want my macro to delete the selected item from my worksheet .i.e. it's entire row so that it doesn't reflect in my lisbox any more. Below is my code :

Code:

Private Sub CommandButton2_Click()
 'REMOVE SELECTION
 
  Dim I As Long
 
    With ListBox1
      For I = .ListCount - 1 To 0 Step -1
       If .Selected(I) Then
           .RemoveItem I
           Sheets("URL List").Rows(I + 2).EntireRow.Delete
           
        End If
      Next I
    
End With

End Sub


Thanks a lot for your help in advance.


Hello,

I'm pretty new at VBA and was wondering if you could help me out on this:

I have created a VBA userform but will need to have it used by at least 5 users. My question is, can it be done with all users working at the same time and when saving their work all data entered will go to one master excel sheet? if yes, would you be kind enough to share the code?
MS Access is not an option for me so I was wondering if you could help me do this in excel.

thank you so much and would really appreciate to hear from anyone soon.

Hi folks,

Hoping someone can help me quickly as I'm pulling my hair out and have a deadline getting too close.

Been trailing the net and this board but can't work out how to do a simple variance.

How do I work out the difference between two numbers - including negatives.

If the numbers are all positive, it's fine as it's simply a case of A - B = C which is your difference. However, that doesn't work if B is negative.

I need a formula that would give the following:

First Number / Second Number / Difference
1 / 5 / 4
1 / -5 / -6
-1 / 5 / 6
-1 / -5 / -4
-5 / -1 / 4

Hopefully there's a simple function I've been missing.

Thanks in advance, R


Hi,
I need the necessity do delete a sequence of sheets in my workbook.
If I use this code:

With ActiveWorkbook
If .Worksheets.Count >= 5 Then
For n = 5 To .Worksheets.Count
Worksheets(n).Delete
Next n
End If
End With

I receive a confirmation message box with this message:

"Data may exist in the sheet(s) selected for deletion. To permanently delete the data, press Delete" [DELETE] [CANCEL]

I wish to delete all sheets without receiving any message.

Is it possible?

Many thanks in advance for your kind support.

Regards,

Giovanni


Is it possible to set multiple validation for a single cell in excel? Its
pretty straight forward to set a single validation so that a message is
displayed when incorrect data is entered. However, adding another validation
seems to delete the old one. Thanks in advance.



Is it possible to apply a filter to multiple sheets within the same Excel workbook, using the same filter criteria?

For example, suppose you have tables of data on 3 different tabs, all having the same headings. Suppose one of the headings is "gender". If you apply a filter to the table on Sheet 1, to only show the rows containing the word "female", is it possible to have the tables on Sheets 2 and 3 automatically update to only show the "female" rows? Or would you have to manually update the filter criteria in Sheets 2 and 3?

I hope this makes sense. Thank you in advance for any help.