Merge pull request #100 from africanmathsinitiative/master

Updating my master

instat/clsRSyntax.vb

@@ -200,6 +200,7 @@ Public Class RSyntax
         Dim lstScripts As New List(Of String)
 
         For Each clsTempCode In lstCodes
+            strScript = ""
             strTemp = clsTempCode.ToScript(strScript)
             'Sometimes the output of the R-command we deal with should not be part of the script... That's only the case when this output has already been assigned.
             If clsTempCode.bExcludeAssignedFunctionOutput AndAlso clsTempCode.bIsAssigned Then
@@ -466,9 +467,9 @@ Public Class RSyntax
     Public Sub ClearCodes()
         lstBeforeCodes = New List(Of RCodeStructure)
         lstAfterCodes = New List(Of RCodeStructure)
-        clsBaseFunction = Nothing
-        clsBaseOperator = Nothing
-        clsBaseCommandString = Nothing
+        clsBaseFunction = New RFunction
+        clsBaseOperator = New ROperator
+        clsBaseCommandString = New RCodeStructure
         strCommandString = ""
         bUseBaseFunction = False
         bUseBaseOperator = False

instat/clsRegressionDefaults.vb

@@ -105,6 +105,7 @@ Public Class clsRegressionDefaults
             Dim clsAutoplot As New RFunction
             Dim clsWhichFuntion As New RFunction
 
+            clsAutoplot.SetPackageName("ggplot2")
             clsAutoplot.SetRCommand("autoplot")
             clsAutoplot.iCallType = 3
             clsWhichFuntion.SetRCommand("c")