In Microsoft Excel, you can set the Minimum and Maximum properties of the
y-axis scale to any value. The example in this article shows the steps
necessary to create a Microsoft Visual Basic for Applications procedure
that determines the minimum and maximum values contained in your data and
sets the scale based on these values.
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The following Visual Basic macro sets the minimum and maximum values for
the y-axis scale in a chart to the maximum and minimum values of the data
used to create the chart.
Type the following in a Visual Basic module sheet:
Dim ValuesArray(), SeriesValues As Variant
Dim Ctr As Integer, TotCtr As Integer
' Uses the first chart on the active worksheet.
' Note: Instead of the preceding line, you could use this line:
' With ActiveChart
' if you wanted to be able to run this macro on a chart sheet.
' Loops through all of the Series and retrieves the values
' and places them into an array named ValuesArray.
For Each X In .SeriesCollection
SeriesValues = X.Values
ReDim Preserve ValuesArray(1 To TotCtr + UBound(SeriesValues))
For Ctr = 1 To UBound(SeriesValues)
ValuesArray(Ctr + TotCtr) = SeriesValues(Ctr, 1)
' In Excel 97 for Windows and Excel 98 Macintosh Edition,
' change the preceding line of code to read as follows:
' ValuesArray(Ctr + TotCtr) = SeriesValues(Ctr)
TotCtr = TotCtr + UBound(SeriesValues)
' Reset the minimum and maximum scale to the minimum and
' maximum values in the ValuesArray.
.Axes(xlValue).MinimumScaleIsAuto = True
.Axes(xlValue).MaximumScaleIsAuto = True
.Axes(xlValue).MinimumScale = Application.Min(ValuesArray)
.Axes(xlValue).MaximumScale = Application.Max(ValuesArray)
Using the Macro
- Select the worksheet that contains your chart.
- To activate the macro, click Macro on the Tools menu, and run the
In Excel 97 and Excel 98, click Tools, point to Macro, and then click
Macros. Click SetScaleToMinAndMaxValues, and then click Run.
The minimum and maximum values of the y-axis should now be equal to the
minimum and maximum values of the data.
"Visual Basic User's Guide," version 5.0, pages 145-146
Article ID: 141363 - Last Review: October 11, 2006 - Revision: 2.3
- Microsoft Excel 97 Standard Edition
- Microsoft Excel 95 Standard Edition
- Microsoft Excel 5.0 Standard Edition
- Microsoft Excel 98 for Macintosh
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