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
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
View 8 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?
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 RelatedI 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 would like to find the intersection points of all of the linesshown on the included chart. If that could be output into a table, by the day, that would be ultimately what I am after. http://bladeseri.50megs.com/Intersects.png. Guess 50megs.com doesn't allow this type of reference. Here is Geocities link http://www.geocities.com/bladex2007/Intersects.png
View 5 Replies View RelatedI need to map the names of the companies on the x axis (ANF, AEO, ARO, PSUN) and 5% to 30% on the y axis. Plotted for each company should be the min and max. So two points for each company. How can I plot this data. Underlying data as follows:
MINMAX
ANF18.6%19.8%
AEO7.8%21.0%
ARO6.2%9.0%
PSUN6.1%14.2%
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?
how to get a line in a graph to become a curved line between 2 data points in 10 point chart. I the pictuer attached I am trying to get the line to curve at the second data point 5(ms) and the third data point at 80(ms). The aftr 80 the line become staright again.[IMG][/IMG]
View 3 Replies View RelatedI have a data and it has been plotted into a graph. Here's what i have: I have 2 points, point A and point B with caps, 1.00 and 2.00 respectively. So now i need to draw 3 parallel lines, i.e from the caps and the main point itself. How do i do that? Manually will be of course selecting a line from the shapes. Any suggestions?
View 14 Replies View RelatedI'm stuck at a point in a graph that I am creating. Attached is as far as I have gone and now i'm having a gap on how to take the 2006, 2007 which is already in graph and add in how these years compare to guidelines visually in the same graph?
for instance ratings 1-9 are grouped in guidelines 1-4, 5-7 etc. How do i add in the 3 guides against each point? I have thought about adding a secondary axis but not how best to demonstrate the range of 1-4 to appear behind or above those points?
I need to find the Peak and Trough for all the points in the attached graph and the data point used for plotting it. How do i find it.
Attached Image : b.png‎
Attached File : A1.xlsx‎
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 Relatedin this example below i need to work out what the divsor would be for values inbetween the data?
View 9 Replies View RelatedHowever 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.
Forecasting using historical seasonally effected data
I organize my thoughts in numbers so it will be easier to understand.
[1] Say I have this data from January 2009 to December 2009:
1-4-7-10-13-14-15-16-18-20-22-25
As you can see, the growth is not linear.
[2] So then, I start with this data point for Janaury 2010.
26-a-b-c-d-f-g-h-i-j-k-l
[3] I now want to forecast that data point for the rest of 2009...using the growth in [1]. SO i guess that's an easy task right? Take the percentage change from Jan 08 and Feb 08...and apply that to the 26...and so on. (am i correct here at least).
[4] But lets say we have a GOAL. So, this become a forecast/plan. In December 2010, i want to grow double the amount of that in December 09. So 25 x 2 = 50. Now, the "known" data is like this:
26-a-b-c-d-f-g-h-i-j-k-50
So how do i do this now?
Is there a way of amending the following line of code so that it selects multiple data points in a data series in a chart (e.g points 14,15,16)?
ActiveChart.SeriesCollection(2).Points(14).Select
I have a bar chart that was made from table 1 which has the value in it. I have another table, table 2 that has the name corresponding to the value in table 1. I want to color data points in a bar chart with a different color for each name I have in table 2. I also want to give a data label in the data points with the value I have in table 2 instead of the original data label from table 1. Is it possible to do it?
View 3 Replies View RelatedI have several files of data that are from a data logger. The data is broken up by day. Each day has roughly 43000 rows of data, at its sample rate. This has made charting the data a nuisance. Is there a way to resample the data so it fits in the 32000 points excel can chart? In the future I will set a sample rate that will keep the number of points below the 32K per series. I would like to be able to have the total number of points reduced by averaging the data not by simply deleting one of every four rows.
View 5 Replies View RelatedI have a data for sedimentation along a pipe. I measured sediment concentrations at different lengths of the pipe, after different intervals of time. So I have 35 concentration values, take at 5 different points along the pipe, at 7 different times. Is it possible to plot a chart with these 35 points, with depth on y-axis, time on x-axis? These 35 points are percent removals (0-100). .
View 4 Replies View RelatedWhat I have is a column (column A) that only has two data entries at any one time.
I need column B to fill in the trend of those two data points.
My problem is I don't know how to deal with the cells that say #N/A. Which is every cell other than the two cells with data.
If I replace the #N/As with say 1, then it messes up the trend data points.
It seems like I need to be using the trend command, but any solution would be welcome.
I'm running a query of 30 and 60 days worth of data but I don't want certain dates to be included in the queries. How do I exclude certain dates and at the same time pull in day 31 to include this in my 30 day high or average etc.?
For example:
1/19/2007 4.7
1/18/2007 4.5
1/17/2007 3.8
1/16/2007 4.9
1/15/2007 3.75
1/12/2007 3.75
I want to exclude 1/15 because it is a holiday and it just repeats the data from 1/12. So I want it to pull in the data for 1/12 if I were doing a 5 day query. As I said before I need to do a MAX, MIN, AVERAGE and STDEV of 30 and 60 days but my formulas are skewed because of the holidays.
I have a line chart that has 4 points. Is it possible to make the data points point to the next point? If so how can I do that?
I have created a series of charts in excel and the data sources for them are located on a hidden sheet. I need to keep all the charts active as I have set up macros that enable a viewer to automatically change the chart with a click of a button. However the data behind these charts is confidential and I cannot let the viewer have access to the individual data points.
My issue is that when you 'hover' your mouse over the lines on the charts, the various data points can be seen
Is there a way to make these data points hidden when you hover your mouse over the chart but at the same time keep the source data active behind the chart?
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 creating a sales report: See below
Sales for Shook, Emily(131520) Total Sales $160.18
Sales for Clayton, Casandra(131008) Total Sales NO SALES FOR THE WEEK
Sales for Jofery, Rebecca(126310) Total SalesNO SALES FOR THE WEEK
Sales for Brea, Olga(124257) Total Sales$140.21
Sales for Mastro, Rachel(131521) Total SalesNO SALES FOR THE WEEK
Sales for Rodriguez, Blanca(111550) Total Sales $154.33
Sales for Katz, Mary Isabel(126840) Total Sales$269.87
Sales for Kitson, Mackenzie(130466) Total SalesNO SALES FOR THE WEEK
Sales for Blagniceanu, Adriana(126518) Total Sales$161.25
Sales for Best, Jessica(128350) Total SalesNO SALES FOR THE WEEK
Sales for Sanchez, Vanessa(126437) Total SalesNO SALES FOR THE WEEK
The Sales For (Last Name, First Name) was a concatenate I created to give everyone a unique identifier. Than I used a vlookup based on the the sales report to get there total sales
=IFERROR(VLOOKUP(D7,sales2,5,FALSE),"NO SALES FOR THE WEEK")
My problem is say for example: Sales for Sanchez, Vanessa shows up twice on the report stating she has total sales for $40 and $60 how can I get excel to calculate that within my VLOOKUP Function. If there a formula I can use to combine both values. I was think SUMIF is the most likely answer but I'm having problems.
How do i conditionally colour chart data points. This is an example of my data from which the chart is created from.
Salesman A 10
Salesman B 10
US Total 20
Salesman C 20
Salesman D 10
Philipines Total 30
When the chart is created, i would like the country total data points to be in orange while the rest of the data points should remain in white. I tried this code and it returned me an error.
ActiveChart.SeriesCollection("Average of Margin").Points("ID Total").Select
With Selection.Interior
.ColorIndex = 36
.Pattern = xlSolid
End With
I also tried the online F1 help it told me to use Points(Index). However i do not want to refer to the ponint with an index as the number of salesman or country could change. Therefore changing the index points.
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
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 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?