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?
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
View 3 Replies View RelatedI 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
View 8 Replies View RelatedI 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
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:
View 3 Replies View RelatedI 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?
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.
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
View 2 Replies View RelatedI 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?
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?
View 1 Replies View RelatedGiven 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?
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?
View 3 Replies View RelatedI 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
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:
View 2 Replies View Relatedto 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.
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.
make a calculation(addition) and use the answer to multiply against another addition calculation....
The sum of (Monday!A1:A4) multiplied by the sum of (Monday!B1:B4) plus (Tuesday!A1:A4) multiplied by the sum of (Tuesday!B1:B4) and so on.
I have a series of monthly revenues and want to calculate each month a commission % - but only want this commission calculated up to a defined limit from the previous months and current month and then to stop when the limit is reached.
View 13 Replies View RelatedA
B
C
D
F
1
Received
Overdue
Completed
Untouched
[code]....
Overdue is received in previous slot and still under dependency.
Formula used for untouched - B2+C2-D2
SLA Target Min - 98% and Max 99%
Algorithm - (Total Number of Allocations completed within 5 business days Plus Type A Exclusions) / Total Number of Allocations received minus Type B Exclusions) * 100
I need a individual SLA achieved % which includes untouched too.
Hoping someone might be able to kindly help me out with this one. It's for a spreadsheet of call charges (credit crunch thing).
On the sheet, I have the call charge up to an hour ($H$5). Over an hour, it's charged per minute at the rate in $H$6.
In cell E27 I can enter the number of minutes for the call.
So basically, if E27 is up to a value of 60 then the cost is just H5, if the value in E27 is 61 or more then it's H5 + (E27-60)*H6.
I'm thinking it's an 'IF' but keep making a mess of it...
How do I calculate YTD from 1 MTD cell? The YTD cell needs to keep a running total of the MTD cell. If the current YTD cell has the number 11 in it and I typed 2 in the MTD cell the YTD cell needs to increase by 2.
View 9 Replies View RelatedWhat I need is to add a field that gives a gross margin percentage for a project.
To begin, I simplified the following data that the Pivot Table is using. Project (10 different projects), Account Number, Account Category (Revenue, and Cost), Debit Amount, Credit Amount, and a manually inserted column named Total (CR Amount - DR Amount). See 1st image. Pivot1.jpg
I have designed the Pivot table so it lays out like this. Pivot2.png Pivot3 (2).png
I have been trying to enter a calculated field that would automatically provide the Gross Margin Percentage. In the 2nd image, the Grand Total is the gross margin, but I am unable to use that as a selection when creating a calculated field.
I am trying to figure out the calculation steps that Goal Seek is doing behind the scenes so I can create the formula rather than clicking on goal seek whenever I need to make a change. I need to maintain certain weeks of supply every week depending on the sales. Let's say i want to maintain 5 weeks of supply every week, I would like to insert a column for "Suggested To Order' column that would change if weeks of supply goes below 5. In this scenario I would do a Goal Seek, but I want to automate the calculation so I don't have to do this step every week.
View 2 Replies View Relatedi need to total a range of cells, however, these contain time values; hh:mm:ss. it shows me the total when all cells are highlighted. but =sum() doesn't work.
View 2 Replies View RelatedI have a spreadsheet with several formulas where I have to go into each one of them to activate the calculation. I use F2 and enter. Automatic calculation is on. Do any of you know how this can be done automatically. A VBA-code will fit the purpose.
View 3 Replies View RelatedMy understanding of Excel is that the calculations are performed in Column A first and then down through the rows in Column A. After all the calculations are finished in A, the calculation moves over to Column B and down the rows in B. Is this true?
I know that Excel is a little more complicated than that especially when it creates a queue for calculations, etc. However, assuming there's no calculation list/queue, would the above be correct?
I'm creating a spreadsheet to calculate materials with the following columns Cost/10% of Cost/Customer Cost/Qty/Total cost.
I understand that whilst showing rounded to 2 decimal places excel stores more than this in the cell. which then throws out the Total cost by a few pence.
My research leads me to believe I need to use the ROUND function but I'm unsure which cell to use it or how.
I have spreadsheet that tracks the the rain total for several days. I would like to be able to break it down to the days of weeks that has rain and how much without manually imputing the data.
Days | #of times | total amount
Mon
Tue
Wed
Thu
Fri
Sat
Sun
I have a data in excel , sample sheet attached.
and i have another place for compile where all the data is summarized
What i want is
If the agent name is example 1 and his mistake is present in raw data and it matches the agent id , date and financial then i want excel to calculate how many " financial " error agent made on that particular date only so that i can assign to another agents too , to get exact data no matter in whichever series that data is inserted in excel.
if i use countif and if all the condition are met it shows me all financial mistakes count and if it shows false it turns to zero . if agent make " financial mistake " on 1st nov and he made another non financial mistake then as it should show only the count of that particular agent " financial mistake " on that date only from the given RANGE DATA
I use VBA with the macro recorder. Now I'd like to programming a code to calculate the average of three cells.
I've done a lot of measurements about 180 but it can be also more. For one test object I've always done three measurements to get then an average.
My values are beginning in cell C2:CXXX, D2:Dxxx and E2:Exxx. For example I'd like to get the average from C2:C4, D2:D4 and E2:E4. The result of C2:C4 I'd like to have in cell H2, the result of D2:D4 in cell I2 and the result of E2:E4 in cell J2. Then the next calculation is C5:C7, D5:D7, E5:E7 and the results in H3, I3 and J3. And so on.
I've attached my excel file, maybe I didn't explained it well. The VBA-Code is for sheet Export.
CalculationE.xlsx