New Post: Problem in thin QR Solve

Hi,
I have found a problem when using the thin QR to solve a Least-Squares problem. Here's my test code:

Public Shared Function MathNetQRSolve(xArray(,) As Double, yColumn() As Double, useFull As Boolean) As Double()

        Dim QRType As LAGeneric.Factorization.QRMethod

        If useFull Then
            QRType = LAGeneric.Factorization.QRMethod.Full
        Else
            QRType = LAGeneric.Factorization.QRMethod.Thin
        End If

        Dim xMatrix As LAGeneric.Matrix(Of Double) = New DenseMatrix(xArray)
        Dim yVector As LAGeneric.Vector(Of Double) = New DenseVector(yColumn)

        Dim output As LAGeneric.Vector(Of Double)

        Try
            Dim tempQR As LAGeneric.Factorization.QR(Of Double) = xMatrix.QR(QRType)
            output = tempQR.Solve(yVector)

        Catch ex As Exception
            output = New SparseVector(yColumn.Count)
            MsgBox(ex.Message)
        End Try

        Return output.ToArray

    End Function

If I use the thin QR factorization then it throws an error, "All vectors must have the same dimensionality". The factorization itself is fine, it's just the solve method that doesn't work.

Thanks,
Andrew