Chart Trendline To Trend Only Specific Values

Oct 3, 2006

i have a workbook that contains a series of worksheets. the workbook is a master document list. the first worksheet contains no data. the remaining worksheets are arranged so that A1 has the document number, A2 contains the document title, and A3 contains the review date. Id like to create a search macro that can search for the string entered into textbox1. if this is a number, the macro should search A1:A50 of all but the first worksheets in the workbook, and if its text, the macro should search B1:B50 of all but the first worksheets.

the macro should then select the cell containing what was searched. then id like the macro to prompt me and ask if id like to modify the reviewed date to todays date. d like to be prompted to continue searching for other records if they exist, and after that loop has finished to set the focus back to the search textbox.

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I tried to record setting a trendline to 100% transparent but this action doesn't seem to record.

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I'm in the middle of designing a sheet that (amongst many other things) takes the equation of a graph trendline, pastes it, and calculates the various values along it. I can do it by hand, but when I try to record a macro, it doesn't register that I've highlighted the equation and hit copy. Here's the code I'm working with:

Sheets("Graphs").Select
ActiveSheet.ChartObjects("Chart 1").Activate
ActiveChart.SeriesCollection(1).Trendlines(1).DataLabel.Select
Selection.Copy
ActiveWindow.Visible = False
Windows("Copy of HRA Design calculator1.xls").Activate
Sheets("Binder @ max. stability").Select
Range("A1").Select
ActiveSheet.paste

The problem is line 4 - it can't copy because the text isn't selected.

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0514_Costs_DRAFT_ExcelF.xlsx

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I have been doing some statistical anaylsis in excel and have been using trendlines within scatter charts quite a bit.

I know excel can display the equation of the line as well as the r-squared on the chart. Is there any way to get the values for the trendline to appear in a cell next to the corresponding chart data? Of course, I can simply enter the formula myself that is given on the chart, but I am wondering if there is a way to do it automatically.

I have included the data below along with the trendline value that I calculated by manually entering the formula from the scatter chart.

Code:
YXTrendline Value
$78.990.53$79.79
$78.730.53$79.73
$80.550.52$80.88

[Code]....

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Sub CopyTreadlineData()
Sheets("A").Select
ActiveSheet.ChartObjects("Chart 1").Activate
ActiveChart.SeriesCollection(1).Trendlines(1).DataLabel.Select
ActiveWindow.Visible = False
Windows("Test.xls").Activate
Sheets("Beta").Select
Range("B15").Select
ActiveSheet.Paste
End Sub

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I have attached both the data and their graphs to visually explain my problem : EF Workbook.xlsx

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I am using Excel 2007. I have two sets of data. y-series is 58.61, 58.66, 58.71 and 58.76. x-series is 0.8313, 0.8309, 0.8305 and 0.8301.

I am trying to fit a quadratic function to this data. When I plot a curve and fit a trendline I get the coefficients for the equation ax^2+bx+c
a=1.3939e-11
b=-125
c=162.5225
The plotted line seems to fit the data fairly well.

However, I want to use the linest function and I am using the formula:
=INDEX(LINEST(B2:B5,A2:A5^{1,2}),1,1)
I change the index column number as appropriate to get the coefficients:
a=-75.23775
b=0
c=110.603763

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I can do it manually but I need an excel Macro which does this work.

A sample is attached : Excel forum-Lab data.xlsx‎

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Dec 17, 2013

I have created a pie chart showing top 10 best selling categories. However, on this pie chart, I want %age of overall sales to be shown.

At the moment say I put in the following

Catalogue 1 100
Catalogue 2 98
Catalogue 3 92
Catalogue 4 85
Catalogue 5 84
Catalogue 6 75

[Code]....

I add Data Labels and select the percentages. This shows at Cat 1 having 12.5% of the sales (100 of 800 sales), Cat 2 having 12.25%, and so on..... However, what you don't see is the following data:

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Catalogue 12 58
Catalogue 13 57
Catalogue 14 57
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I understand what is happening, the chart is giving the percentage based on the data inputted into the chart.

I did consider adding an 11th category to the chart, which was the total of Catalogues 11-15. Whilst this does give a more accurate percentage figure (as now all sales have been inputted), it makes the chart look ****

Is there a way of either adding the 11th category, and then "hiding" it, so that the chart doesn't display it, but uses it's value to calculate Catalogues 1-10s percentage?

BTW: The reason I ask is that I could be dealing with anywhere from 30 to over 100 catalogues. So it's not ideal showing the others in 1 chart.

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If you take the first data point in a trendline and subtract it from the last data point and then divide that by the first it should give you the percent change. Excel must be able to do that math for you but I can't even figure it out to save my life. I can't even figure out how to display the first and last data point much less the "rate" of change I'm looking for.

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VB: =INDEX(LINEST(CP25:CP27,CQ25:CQ27^{1,2}),1)}

i have variables for cp25:cp27 and cq25:cq27 already defined in my vba code. the values for these in the case i am working on are as follows (returns 110.5):

cp25 = 560
cp26 = 570
cp27 = 580
cq25 = .414
cq26 = .479
cq27 = .536

1) how to do this function in VBA only - this is part of a UDF and cannot have any helper cells
2) how to refer to 560,570,580 as a 'range'. is there a way to put these six variables into my ranges for later processing?

All of the google searches i have deal only with linear regression, taking from existing graphs, or say to just use the function i have above.

I have tried

VB:

Var = Application.WorksheetFunction.LinEst(Sheets("references").Range("CP25:CP27"), Sheets("references").Range("CQ25:CQ27^{1,2}"), 1)
[COLOR=#333333][/COLOR]

but return #value! errors. when i remove the ^{1,2} portion, i do return a value but it is incorrect (returns 160), what is the correct syntax for adding in the ^{1,2}? if you do that would be fantastic, but brings me back to issue #2 in that i need to refer to my variables in the vba code and not this range (as they will eventually be going away).

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'Delete all charts
Dim oc As ChartObject
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oc.Delete
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Sub test()
Dim knowny As Variant
Dim knownx As Variant
Dim newx As Integer
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knownx = Array(1, 2, 3, 4, 5)
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