两个条件过滤和去除零值

Question

我有一个简单的dataframe 计数，用于种植辣椒实验。我想删除 treatment's[(Control and Covered) Fruit_total 都等于零的观察结果。我试过filter，但我一次只能处理一个变量。有什么建议吗？

]2

Answer 1

您可以通过对location.id 进行分组并过滤Fruit_total 的总和来完成此操作：

library(tidyverse)

df %>%
  group_by(location.ID) %>%
  filter(sum(Fruit_total) != 0)

产量：

# A tibble: 22 x 5
# Groups:   location.ID [11]
   location.ID  Year plant                 treatment Fruit_total
         <dbl> <dbl> <chr>                 <chr>           <dbl>
 1           7  2019 Anaheim.Peppers.Count Control            23
 2           9  2019 Anaheim.Peppers.Count Control             3
 3          15  2019 Anaheim.Peppers.Count Control             0
 4          23  2019 Anaheim.Peppers.Count Control             1
 5          38  2019 Anaheim.Peppers.Count Control             8
 6          41  2019 Anaheim.Peppers.Count Control             1
 7          42  2019 Anaheim.Peppers.Count Control            12
 8          43  2019 Anaheim.Peppers.Count Control             7
 9          45  2019 Anaheim.Peppers.Count Control             5
10          49  2019 Anaheim.Peppers.Count Control            13
# ... with 12 more rows