Interop Excel method LinEst failing with DISP_E_TYPEMISMATCH

Question

I am facing a problem while making Excel\'s LinEST function.

My program goes like

MyExcel.Application xl = new MyExcel.Application();
MyExcel.Workshe         


        

Answer 1

Convert the lists x and y to array :

    MyExcel.Application xl = new MyExcel.Application();
    MyExcel.WorksheetFunction wsf = xl.WorksheetFunction;
    List<int> x = new List<int> { 1, 2, 3, 4 };
    List<int> y = new List<int> { 11, 12, 45, 42 };
    //object o = wsf.LinEst(x, y, true, true);
    object o = wsf.LinEst(y.ToArray(), x.ToArray(), false, true);