Question

我有一张这样的桌子：

Sub Button1_Click()

Dim inpts As Variant
Dim players() As Variant

With Worksheets("sheet3")
    inpts = .Range("F2:F11").Value
    ReDim players(1 To UBound(inpts, 1), 1 To 10)
    Dim counts As Long
    counts = 0
    For counter = LBound(inpts) To UBound(inpts)
        Dim arr() As String
        arr = Split(inpts(counter, 1))
        Dim element
        For Each element In arr
            If element = "PG" Or element = "SG" Or element = "SF" Or element = "PF" Or element = "C" Or element = "G" Or element = "F" Or element = "UTIL" Then
                counts = counts + 1
            Else
                players(counter, counts) = players(counter, counts) & element & " "
            End If
        Next element
        counts = 0
    Next counter
    .Range("L2").Resize(UBound(players, 1), UBound(players, 2)).Value = players
End With
End Sub

现在我想合并它们，只获取非NaN值为的列：

    c0 | c1 | c2 | c3
________________________
    1  | 2  |NaN | NaN
    3  | 4  |NaN | NaN
   NaN |NaN |5   | 6
   NaN |NaN |28  | 3

Pandas有没有这样做的功能？

谢谢！

Answer 1

使用apply

df.apply(lambda x : sorted(x,key=pd.isnull),1).dropna(1)
Out[458]: 
     c0   c1
0   1.0  2.0
1   3.0  4.0
2   5.0  6.0
3  28.0  3.0

Answer 2

你可以使用combine_first（）

public void Ld_IsSelectedChanged(object sender, EventArgs e)
    {
        //get the floating windows from the DockingManager
        manager.FloatingWindows.ToList().ForEach(floatingWindow =>
        {
            floatingWindow.Owner = null;
            floatingWindow.ShowInTaskbar = true;
            var fw = floatingWindow.Model as LayoutDocumentFloatingWindow;
            floatingWindow.Title = fw?.RootDocument?.Title ?? "";
        });
    }

如何根据其值合并列 - 熊猫？

2 个答案: