Bland Altman plots


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  • 1. blank cells
    Perhaps I am trying to use the wrong kind of chart... I have information in a pivot chart that I want displayed in lines. However there are some cells that have no information in the series I want to plot. But there is other information in the row, so it doens't ignore it as a blank cell. For example: Days Actual High Low 2 3 5 2 7 5 3 15 2.5 4 2 When I chart the actual series, it reads the blank as a zero and plots it as such. My columns in the pivot charts are averages. Is there any way I can get the chart to ignore the zero and still plot a line to the next point? I have tried using the excel options and the pivot chart options for ignoring blanks but it hasn't worked so far.
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  • 4. Setting chart title.
    I am getting an ArgumentException with the message, "This object has no title." from the following code: chart.ChartTitle.Text = "Total Sales Comparison"; If I comment out this line the chart is created but the Title is "Chart Title". What do I need to do to set the chart title? If it helps here is the code I am using to create the chart: Excel.Shape shape = ws.Shapes.AddChart(Excel.XlChartType.xlLine, missing, missing, missing, missing); shape.Name = "YTDTotalSales"; Excel.Chart chart = shape.Chart; if (chart != null) { chart.SetSourceData(ws.get_Range(string.Format("{0}2:{1}{2}", (char)('A' + (baseColumn + 0)), (char)('A' + (baseColumn + 4)), currentTotalList.Count + 2), missing), missing); ((Excel.Axis)chart.Axes(Excel.XlAxisType.xlCategory,Excel.XlAxisGroup.xlPrimary)).TickLabelPosition = Excel.XlTickLabelPosition.xlTickLabelPositionHigh; chart.ChartTitle.Text = "Total Sales Comparison"; chart.ApplyLayout(3, missing); } Thank you. Kevin

Bland Altman plots

Postby SlJE » Sun, 19 Aug 2007 23:30:02 GMT

Does anyone know if there is an add in that creates Bland Altman plots?



Re: Bland Altman plots

Postby James Silverton » Mon, 20 Aug 2007 00:09:45 GMT

 JRD  wrote  on Sat, 18 Aug 2007 07:30:02 -0700:

 J> Thanks

It does not seem that it would be too difficult to set up Excel 
to do what you want. See the Wikipedia stub on Bland Altman. 
That's just what I did since I had not realized that Bland and 
Altman had arrogated the standard Tukey mean-difference plot, as 
is it is still known as in other fields.

James Silverton
Potomac, Maryland

E-mail, with obvious alterations: 

Re: Bland Altman plots

Postby Gaj Vidmar » Tue, 21 Aug 2007 19:43:50 GMT

I didn't follow the previous discussion, but here's a ready-made macro
solution (from 2004):


For several other Excel solutions for statistics, related info and links,
visit our website at


and follow the link on the left to Software (and scroll down to Excel

Gaj Vidmar, PhD
Univ. of Ljubljana, Fac. of Medicine, Inst. of Biomedical Informatics

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