How to skip empty cells in a range to use as range for a scatterplot? - excel

Question

I'm fairly new to VBA and trying to dynamically select the data i need for my scatter plot. I'm trying skip any rows that have a blank in the "A" column so the scatter plot is continuous.
The code in the commented section is what i tried first, but that gives me a method range of object_global failed error on the setsourcedata line. I expect the code to skip the empty cell and continue through mydatatest variable until it reaches the end. However, the actual output stops at the first empty cell.
Set mydatatest = ActiveWorkbook.Sheets("Data - PLC").Range("A3:A94")
'Set mydata = ActiveWorkbook.Sheets("Data - PLC").Range("A2:C2")
Set mydata = ActiveWorkbook.Sheets("Data - PLC").Range("A2")
For Each mydatapoint In mydatatest
If IsEmpty(mydatapoint) = False Then
'Set mydata = Union(mydata, Range(mydatapoint, mydatapoint.Offset(0, 2)))
Set mydata = Union(mydata, mydatapoint)
End If
Next mydatapoint
ActiveWorkbook.Sheets("Report").Select
Set cht1 = Sheet1.ChartObjects.Add(10, 365, 275, 200)
With cht1.Chart
.ChartType = xlXYScatterLinesNoMarkers
.SeriesCollection.Add Source:=Range(mydata, mydata.Offset(0, 2))
'.SetSourceData Source:=Range(mydata)
End With

Answer 1

The error is in .SetSourceData Source:=Range(mydata). It should be .SetSourceData Source:=myData. myData is already declared as Range(). The rest is quite ok:
Option Explicit
Sub TestMe()
Dim myDataTest As Range
Dim myData As Range
Dim wks As Worksheet
Set wks = Worksheets(1)
Set myDataTest = wks.Range("A3:A94")
Set myData = wks.Range("A2")
Dim myDataPoint As Range
For Each myDataPoint In myDataTest
If Not IsEmpty(myDataPoint) Then
Set myData = Union(myData, myDataPoint)
End If
Next myDataPoint
Dim cht As Object
Set cht = wks.ChartObjects.Add(10, 365, 275, 200)
With cht.Chart
.ChartType = xlXYScatterLinesNoMarkers
.SeriesCollection.Add Source:=wks.Range(myData, myData.Offset(0, 2))
.SetSourceData Source:=myData
End With
End Sub