Question

我希望mtcars数据集的两个要点都是 TRUE ：

cyl ＆gt; 4和 mpg ＆gt; 10
vs ＆gt; 0或 carb ＆gt; 1

＆＃39;适当的＆＃39;用dplyr写这个的方法？是否有某种可视化解释和/或？＆＃34;和＆＃34;之间的区别＆＃34;和，或，＆＃34;以及那种东西。我想我在下面说得对，但这总是让我感到困惑。我认为R inferno中有一章叫做＃34;和andand＆＃34;讽刺这种情况。

library(dplyr)
mtcars %>% 
  filter(
    cyl > 4,
    mpg > 10,
    vs > 0 | 
      carb > 1
  )

Answer 1

你的表达没问题 - 据我所知，你可以, filter(...)对&中的每个mtcars %>% filter(cyl > 4) %>% nrow() # 21 mtcars %>% filter(mpg > 20) %>% nrow() # 14 mtcars %>% filter(cyl > 4, mpg > 20) %>% nrow() # 3 mtcars %>% filter(cyl > 4 & mpg > 20) %>% nrow() # 3 identical(mtcars %>% filter(cyl > 4, mpg > 20), mtcars %>% filter(cyl > 4 & mpg > 20)) # TRUE mtcars %>% filter(cyl > 4, mpg > 20, vs > 0) %>% nrow() # 1 mtcars %>% filter(cyl > 4, mpg > 20, carb > 1) %>% nrow() # 2 mtcars %>% filter(cyl > 4, mpg > 20, vs > 0 | carb > 1) %>% nrow() # 3 identical(mtcars %>% filter(cyl > 4 & mpg > 20 & (vs > 0 | carb > 1)), mtcars %>% filter(cyl > 4, mpg > 20, vs > 0 | carb > 1)) # TRUE进行处理：

Sub combine_all_Reports()

Dim J As Integer
Dim s As Worksheet

On Error Resume Next

For Each s In ActiveWorkbook.Sheets
    If s.Name <> "Combined Reports" Then
        Application.GoTo Sheets(s.Name).[B9]
        Selection.CurrentRegion.Select
        Selection.Copy Destination:=Sheets("Combined Reports"). _
        Cells(Rows.Count, 1).End(xlUp)(2)
        wksCombinedReports.Cells.EntireColumn.AutoFit
    End If
Next

End Sub

使用＆＃39;和＆＃39;的dplyr滤波器逻辑和＆＃39;或＆＃39;

1 个答案: