# Regression Automation In Vba

Oct 2, 2008

The above is a screenshot of the data analysis (regression) I want to automate with vba code. Like all macros, I tried to record first and only got the following

## Linear Regression?

Jul 21, 2006

I was handed the attached file. understand everything except how the values in row 6 were derived No formula present when I received the file, just the numbers. Row 7 is hard entered scores the units achieved

## Constrained Regression Using Solver

Nov 11, 2008

I have the following dataset and was wondering how I can run a constrained regression in Excel with the constraint being that the total allocation of assets is 100%:

Total return (y): 12 data points
Asset 1 (x1): 12 data points
Asset 2 (x2): 12 data points
Asset 3 (x3): 12 data points
Asset 4 (x4): 12 data points
Asset 5 (x5): 12 data points
Asset 6 (x6): 12 data points

[Attached is a spreadsheet with the actual dataset]

I know the regression equation I need is R = b1X1 + b2X2 + ….+ (1 - b1 - b2 -….- b5 )X6 + e

## Using The Regression Function From Within A Macro

Jul 9, 2009

I am wanting to write a macro which uses the excel multiple regression function (a part of the data analysis add-in). I tried recording a macro while I selected the regression function (Tools> Data Analysis... etc.) which produced the following:

## Multiple Linear Regression In VBA?

Oct 16, 2008

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. Any (simple) source code allowing me to conduct a regression with three input parameters?

Feb 8, 2007

I am trying to set up the formula y = ax^2 + bx + c. Is there a function for that in excel?

To get a little more into my overall goal. I will have a x constant that will remain the same, but I have 8 different sets of a,b, & c coefficients. So, I would like to set up something like, if a row is labeled A1, find the A1 set of coefficients and use them in the quadratic equation. I was thinking I would need to use a CSE, is that correct?

## Dynamic Trend Regression Formula?

Jan 10, 2014

Ok so heres an example workbook:

Book5.xlsx

As you can see from the workbook, each column's amount of numbers depends on the data pulled from an index/match function.

These numbers will change and I want the TREND function to dynamically change with the data.

## Excel 2007 :: How To Personalize The Regression

Dec 19, 2012

I have one question about the regression. i know how can i do it lineair, exponentiel ... but how can i make a personnalised regression ? for example, if i have i function f(x)=a+b*x^2 or another function ... how can i introduce my function to draw the regression ? i have excel 2007

## Multivariate Polynomial Regression In Excel?

Feb 8, 2010

I am trying to do multivariate polynomial regression in excel, trying to correlate data of the form y=f(x1,x2) with second order polynomials:

Y = c + a1*x1 + a2*x1^2 + a3^x1^3 + b1*x2 + b2*x2^2 + b3*x2^3

Using the following command, I have achieved this:

=LINEST(A2:A10,B2:B10^{1,2,3,0,0,0}*C2:C10^{0,0,0, 1,2,3},TRUE,TRUE)

theory Excel uses for this kind of regression?

## Linear Regression On Single Set Of Numbers

Jan 27, 2013

If I have a set of numbers 1,2,3,4,5,6,7,8,9 in cells, how can I get a line of best fit, linear regression, in the cells next to them?

## How To Plot Scatter Graph With Regression

Nov 20, 2013

Given 100 samples, to calculate: numbers of hours spent on study is dependent on numbers of hours spent on social networking site.

x (social networking site)
y (study)
x^2

xy

6
4
36
16
24

[Code] .......

SUMMARY OUTPUT

SUMMARY OUTPUT

Regression Statistics

Regression Statistics

Multiple R
0.571423290877713

[Code] ....

So, I've got the coefficient of correlation equals to 0.57, how can I plot my scatter graph?

## Linear Regression Array - Significance Of R Testing

May 5, 2014

I have set up a linear regression array in Excel and now want to test the significance of my r2 value at a certain level of significance. I've only been able to find tables that give the critical r value, but I want to test it at 99.73% level of confidence and none of them contain that specific value. Is there a way to do this in Excel?

## Linear Regression Over The First 5 Points In The Set Of Data On The Same Graph

Mar 2, 2009

I have a set of data. I know how to do linear regression over the whole set of data. How do I have another linear regression over the first 5 points in the set of data on the same graph ?? I am using Excel 2007

## Incorporating Data Analysis: Regression Into A Macro

Apr 10, 2009

I'm trying to write a macro that will analyze data from one spreadsheet and do a regression. The information I want to be output on the same sheet. I tried to use the record function, but I got an error. It said "Run-time error '1004': ATPVBAEN.XLA could not be found. The code read:

## Regression Coefficients Estimated Incorrectly When Centered Predictors Used

May 23, 2007

to getting accurate regression coefficients from a dataset with *small* (standard) numbers, which contains centered predictors. More specifically, I have a dataset with 18 observed data points containing a criterion (y), a centered predictor variable (x), another centered predictor variable (z), and the interaction of the two centered predictor variables (xz). This multiple regression equation is structured to test for interactions between the two continuous predictor variables (x and z) as prescribed by Aiken and West (1991) in their classic book.

When I run the regression in Excel with the centered predictors, some of the regression coefficents in the output are estimated to be 0, although they are clealry *not* 0 as estimated by SPSS 14.0.2. I have spent many hours troubleshooting this problem (and searched many forums on the internet) and still do not know why this is happening.

Initially, I thought the problem might have to do with the cross-product of the centered predictors, but even just doing a regression with one of the centered predictors (for certain centered predictors) yields a regression coefficient of 0 (although it should be non-zero as per SPSS 14.0.2). When doing these multiple regressions with non-centered predictors, all regression coefficients are estimated accurately.

I was wondering if anyone had any insights on why I am experiencing these problems.... If anyone wants a sample of some test data I have used to troubleshoot these problems, you can download a file from: [url] and/or email me at (email deleted by Mod) for more datasets or questions.

## Regression Error - Non-Numeric Data / Contiguous And Complete Rows Or Columns

Apr 10, 2013

However I have a subject at uni that requires me to create a series of regression models, histograms, correlation matrices etc.

For part of the assignment, i have to run 4 regressions (one for men & one for women) with dependent variable as average wages, and independent as bfast 1,2,3 and dinner 1,2,3 (all of which are dummy variables) (0 for male and 1 for female).

The second two regressions are exactly the same, except average wages must be transformed into log which i have already done.

I dont know how to differentiate the regression models into male and female (if possible). We must also include residuals and residual plots.

I keep getting an error that says non-numeric data, the other says input range must be a contiguous reference.

## IE Automation

Aug 3, 2009

I'm trying to do some automation of a website that has one of those annoying javascript popup dialog boxes you have to click OK on before you can progress. How can I kill that so that I don't have to manually click on "Ok" so that my macro can keep running?

## VBA Into IE Automation

Feb 20, 2010

You take an input, click a button. This will them create a small HTML table with a text input box and another button.

Sub VisitWebsite()
Dim ie As Object
Dim tcode As String
Dim sURL As String
Set ie = CreateObject("INTERNETEXPLORER.APPLICATION")
sURL = http://sample.jsp
ie.navigate sURL
ie.Visible = True
tcode = "apples"

While ie.busy
DoEvents
Wend
Application.Wait Now() + TimeValue("00:00:03")

For Each ieForm In ie.document.forms
ieForm(1).Value = tcode
ieForm.submit
Set ieForm = Nothing
Exit For
Next
The code ieForm(1).Value = tcode works. The code ieForm.submit also hits submit on the button.

The problem is I cannnot figure out how to access the 2nd button which is generated when you click the 1st button. I have tried every variation of ieForm(1).Value. There appears to be only 3 forms (0, 1, 2). When I try 3 or greater, I get an error.

When I use ieForm(2).Value = "something", the Retrieve button text actually changes name to "something".

I've attached a screen shot of the webpage. I can insert text into the top Track Code box, and click Retrieve.

I can't change the text in the Routing Position field, and I cannot click the "Set" button. Any help would be greatly appreciated. I am still a beginner with VBA and it took me a while just to get it to work with the 1st input box.

## Email Automation

Feb 11, 2010

I am trying to create a document that automatically sends an email whenever a field reaches a certain value. I am pulling the data from different worksheets onto a summary worksheet and using the data on the summary sheet as the point at which my code checks to see whether the value is below the minimum required. The summary sheet updates automatically whenever I change the data in one of the other sheets but the email will not send automatically when the summary sheet is updated. When I run the macro individually the email sends, however I need some way of triggering it so that it sends automatically upon the data in the field changing. Can anyone help me with this?

Here is an example of some of the code I am using:

Private Sub Worksheet_Change(ByVal Target As Range)
If Not Application.Intersect(Range("D3"), Target) Is Nothing Then
If IsNumeric(Target.Value) And Target.Value < 1 Then
ANDES1
End If
End If
If Not Application.Intersect(Range("E3"), Target) Is Nothing Then
If IsNumeric(Target.Value) And Target.Value < 1 Then
ANDES2
End If
End If
End Sub

## Automation Error After Some Iterations?

Jun 11, 2014

Creating a spreadsheet to inventory cups each day. When a macro was invoked do the following:

-unprotect the worksheet

-cut/paste the completed sheet below the current

-bring in the values form the previous day's inventory

-set protection on new spreadsheet to lock the cells

-blank out old values

-reprotect the worksheet

Pretty straightforward and seems to work fine for a few iterations, then crashes with "Run-time error '-2147417848 (80010108)': Automation error. The object invoked has disconnected from its clients.".

As FYI, this code was mostly generated using a record macro session, so no variables involved.

Here is a screenshot of the spreadsheet as it sits now:

Here is the code:
Sub NewDay()
'
' NewDay Macro

' Create new day and copy cup count from previous day[code]....

## Automation Of Creating PDF Files

Jun 24, 2009

We are trying to automate the creation of PDF files for each sheet in an Excel file,a nd keep getting error messages. Can someone help? It produces the post script file, but it has no data nd then doesn't create a PDf file at all. We have Excel 2003, and have the below code setup.

## Excel Automation - Timer?

Nov 5, 2009

I have a file that I update daily. It involves opening the file, going to a drop down menu and selecting 1 of the listed items and pressing a button to run the macro. Once the macro is complete, I then go back to the dropdown menu and select the next line item and press the same button to run the macro on this. I repeat this task 7times.

All the macro does is load a txt file to a third party system.

I am looking to see if it is possible to reduce the time it takes to do this task.

## VBA Automation - When To Use Display Alerts

Apr 18, 2012

Using VBA automation - set ObjXL as an Excel.Application
Lots of code and data transfer
then:

3410 ObjXL.ActiveWorkbook.SaveAs FileName:=strSaveAsFileName
3420 ObjXL.Visible = False
3430 ObjXL.Quit
Set Objxl= nothing

should the line be set : ObjXL.displayAlerts = True
- befor the objxl.Quit ?
- before the Objxl.ActiveWorkbook.SaveAs FileName:= aname
how to close the ObjXL with out orphaning a process.

OR???
Will this line of code create a 2nd instance of Excel?

## Calculate Sumsq Through VBA For Some Automation

Nov 20, 2012

I am trying to calculate the sumsq throught VBA for some automation.

The formula to be entered is - =SUMSQ(K1025:K1358)/(COUNT(K1025:K1358)-COUNTIF(B1025:B1358,"0"))

Another thing is that the row numbers are variables, and not fixed in automation. Let's call them R1 and R2. So I need the range to be R1 to R2 in all the instances in the above formula.

## Internet Explorer Automation Using VBA

Feb 27, 2013

I want to automate few steps,

Step 1 : click on button in Internet explorer1(IE1) which inturn opens Internet explorer2(IE2).
Step 2 : in IE2 i want to enter some value in textbox and click in "go" button.

Managed to get step 1 some how, need to proceed futher with step 2 given above

Private Sub IE_Autiomation()
Dim i As Long
Dim IE As Object
Dim objElement As Object
Dim objCollection As Object
Set IE = CreateObject("InternetExplorer.Application")

[Code] .........

## Internet Explorer Automation

Aug 3, 2013

I am trying to automate a website which I use for daily office related work. I am navigating the website, selecting some options and clicking on download button using vba code. When I click on download it opens a new internet page. Now I have to click one more hyperlink on that newly opened internet page. How to do that?

## UserForm - Automation Error

Aug 5, 2008

I created a UserForm (userform1) and added a label to it which essentially just says: "Pick a Colour"...

The other UF controls are added on the fly using the below code...however when I try to add the event to each button I get the Automation Error but I don't really understand how / why... the events are actually added to the VB project ok...

Private Sub UserForm_Initialize()
Dim NewButton As MSForms.CommandButton
Dim ws_i, line As Integer
Dim clr_str As String
For Each ws In ActiveWorkbook.Worksheets

I added a dummy routine for test purposes which is to be invoked on click of UF button control (I have tried placing this code in a standard module, within UF module etc to no avail):

Sub HIDE_WS(clr_id As Long)
MsgBox clr_id
End Sub

So to reiterate -- when I invoke the initialisation of the UF I get the following error:

Automation Error
The object invoked has disonnected from its clients

All events are added for each control.

If I remove the adding of the events I know the UF populates with the correct controls etc...

## Pivot Charts Automation

Sep 16, 2009

pivot chart automation. I have a tab that contains thousands of rows and it grows larger on a weekly basis. On this tab is 169 peices of hardware I manage. Each week 1 row of data is added to all 169 peices of hardware. The data from the main tab contains metrics I need to chart. However, I am in need of a way of selecting a specific peice of hardware and having the pivot charts update automatically. There will be 26 Charts and going through each chart and selecting the proper hardware is going to take far too long.

Is there any way i can select just 1 peices of hardware from the data tab and have it populate all of these charts?

## Solver Automation VBA Code

Dec 31, 2008

I've done quite a bit of research in the past week or so on the topic of solver automation using loops; while there are a few good posts scattered around, i haven't quite found the solution to my problem.

i'm trying to run the solver on a few like-sized datasets contained in one worksheet. i've set up a loop to properly reference the 4 datasets. the solver constraints are in one column on the same worksheet.

the macro runs with no errors, but it doesn't "solve." the parameter cells retain their original values.

i should mention that my macro ran perfectly before i consolidated the 4 separate solver calls into one loop. I got tired of having to type 4 different constraint changes in the code as i was optimizing the solver.

on a similar topic, does anyone know how to call a variable in the FormulaText declaration? If i wanted to step through a defined array of constraints, say [1,2,3], how do i get FormulaText:= variable to work?

Sub Macrosolver()

Dim iteration As Long
Dim i As Integer
i = 8 'start in row 8 at first dataset