Need to Multiple a Series Collection using VBA but without creating a new range in sheet

sndameron

New Member
Joined
Sep 21, 2014
Messages
27
I want to be able to plot the data in the first 2 columns. Then, in vba, I want to be able to plot it again, but multiply the second column (x-axis) by negative 1. I do not want to have to create a new column in my sheet of these negative values, though.
Y axisX axis
45.370
45.710
45.782
46.208
46.564
46.744
46.779
47.079
47.295
47.494
47.600
47.799
48.311
48.346
48.352
48.394
48.435
48.476

<!--StartFragment--> <colgroup><col width="65" style="width:65pt"> </colgroup><tbody>
<!--EndFragment--></tbody>
29.24
37.79
61.96
76.72
71.35
61.67
52.01
52.21
37.29
61.52
58.95
36.66
55.14
47.99
29.09
35.28
50.34
49.06

<!--StartFragment--> <colgroup><col width="65" style="width:65pt"> </colgroup><tbody>
<!--EndFragment--></tbody>

<tbody>
</tbody>

Here is the code I have so far, but I have no idea how to do the second part:


With ActiveChart.SeriesCollection.Add
.Name = ActiveSheet.Range("B2")
.Values = ActiveSheet.Range("A2:A192")
.XValues = ActiveSheet.Range("B2:B192")
End With
'create negative x axis version (mirror it)
With ActiveChart.SeriesCollection.Add
.Name = ActiveSheet.Range("B2")
.Values = ActiveSheet.Range("A2:A192")
.XValues = -1*(ActiveSheet.Range(("B2:B192"))
End With


application.pdf
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Domenic

MrExcel MVP
Joined
Mar 10, 2004
Messages
19,406
The images at the bottom of your post are not being displayed. In any case, let's assume the following...


  1. The sheet containing the data is the active sheet.
  2. Column A contains the Y values.
  3. Column B contains the X values.
  4. A1 and B1 contain the column labels/headers.

Maybe something like this...

Code:
[COLOR=darkblue]Option[/COLOR] [COLOR=darkblue]Explicit
[/COLOR]
[COLOR=darkblue]Sub[/COLOR] CreateChart()

    [COLOR=green]'Declare the variables[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] oChart      [COLOR=darkblue]As[/COLOR] Chart
    [COLOR=darkblue]Dim[/COLOR] vData       [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Variant[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] vTemp1      [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Variant[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] vTemp2      [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Variant[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] aYValues()  [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Double[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] aXValues()  [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Double[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] LastRow     [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Long[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] i           [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Long[/COLOR]
    [COLOR=darkblue]Dim[/COLOR] j           [COLOR=darkblue]As[/COLOR] [COLOR=darkblue]Long[/COLOR]
    
    [COLOR=green]'Make sure that there's an active worksheet[/COLOR]
    [COLOR=darkblue]If[/COLOR] TypeName(ActiveSheet) <> "Worksheet" [COLOR=darkblue]Then[/COLOR] [COLOR=darkblue]Exit[/COLOR] [COLOR=darkblue]Sub[/COLOR]
    
    [COLOR=green]'Find the last used row[/COLOR]
    LastRow = Cells(Rows.Count, "A").End(xlUp).Row
    
    [COLOR=darkblue]If[/COLOR] LastRow > 1 [COLOR=darkblue]Then[/COLOR]
    
        [COLOR=green]'Get the data[/COLOR]
        vData = Range("A2:B" & LastRow).Value
        
        [COLOR=green]'Redim the arrays[/COLOR]
        [COLOR=darkblue]ReDim[/COLOR] aYValues(1 [COLOR=darkblue]To[/COLOR] [COLOR=darkblue]UBound[/COLOR](vData, 1) * 2)
        [COLOR=darkblue]ReDim[/COLOR] aXValues(1 [COLOR=darkblue]To[/COLOR] [COLOR=darkblue]UBound[/COLOR](vData, 1) * 2)
        
        [COLOR=green]'Fill the arrays[/COLOR]
        j = 1
        [COLOR=darkblue]For[/COLOR] i = 1 [COLOR=darkblue]To[/COLOR] [COLOR=darkblue]UBound[/COLOR](vData, 1)
            aYValues(j) = vData(i, 1)
            aXValues(j) = vData(i, 2)
            aYValues(j + 1) = vData(i, 1)
            aXValues(j + 1) = vData(i, 2) * -1
            j = j + 2
        [COLOR=darkblue]Next[/COLOR] i
        
        [COLOR=green]'Sort the arrays[/COLOR]
        [COLOR=darkblue]For[/COLOR] i = 1 [COLOR=darkblue]To[/COLOR] [COLOR=darkblue]UBound[/COLOR](aXValues) - 1
            [COLOR=darkblue]For[/COLOR] j = i + 1 [COLOR=darkblue]To[/COLOR] [COLOR=darkblue]UBound[/COLOR](aXValues)
                [COLOR=darkblue]If[/COLOR] aXValues(i) > aXValues(j) [COLOR=darkblue]Then[/COLOR]
                    vTemp1 = aXValues(j)
                    vTemp2 = aYValues(j)
                    aXValues(j) = aXValues(i)
                    aYValues(j) = aYValues(i)
                    aXValues(i) = vTemp1
                    aYValues(i) = vTemp2
                [COLOR=darkblue]End[/COLOR] [COLOR=darkblue]If[/COLOR]
            [COLOR=darkblue]Next[/COLOR] j
        [COLOR=darkblue]Next[/COLOR] i
        
        [COLOR=green]'Create the chart[/COLOR]
        [COLOR=darkblue]Set[/COLOR] oChart = ActiveSheet.ChartObjects.Add(Left:=120, Top:=12, Width:=845, Height:=320).Chart
    
        [COLOR=green]'Set the properties for the chart[/COLOR]
        [COLOR=darkblue]With[/COLOR] oChart
            .ChartType = xlXYScatter
            [COLOR=darkblue]With[/COLOR] .SeriesCollection.NewSeries
                .Name = Range("B1").Value
                .XValues = aXValues
                .Values = aYValues
            [COLOR=darkblue]End[/COLOR] [COLOR=darkblue]With[/COLOR]
        [COLOR=darkblue]End[/COLOR] [COLOR=darkblue]With[/COLOR]
        
    [COLOR=darkblue]Else[/COLOR]
    
        MsgBox "No data is available!", vbExclamation
        
    [COLOR=darkblue]End[/COLOR] [COLOR=darkblue]If
[/COLOR]
End [COLOR=darkblue]Sub[/COLOR]

Hope this helps!
 
Last edited:

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