R语言如何删除指定数据

# 创建一个示例数据框
data <- data.frame(
  id = c(1, 2, 3, 4, 5),
  name = c("Alice", "Bob", "Charlie", "David", "Eve")
)

# 删除name列
data <- subset(data, select = -name)
print(data)

  id
1  1
2  2
3  3
4  4
5  5

# 加载dplyr包
library(dplyr)

# 创建一个示例数据框
data <- data.frame(
  id = c(1, 2, 3, 4, 5),
  name = c("Alice", "Bob", "Charlie", "David", "Eve")
)

# 删除name列值为"Bob"的行
data <- data %>%
  filter(name != "Bob")

print(data)

  id    name
1  1   Alice
2  3 Charlie
3  4   David
4  5     Eve

# 创建一个示例数据框
data <- data.frame(
  id = c(1, 2, 3, 4, 5),
  name = c("Alice", "Bob", "Charlie", "David", "Eve")
)

# 删除索引为2和4的行
data <- data %>%
  slice(-c(2, 4))

print(data)

  id     name
1  1    Alice
2  3  Charlie
3  5      Eve

# 创建一个示例数据框
data <- data.frame(
  id = c(1, 2, 3, 4, 5),
  name = c("Alice", "Bob", "Charlie", "David", "Eve")
)

# 删除name列值为"Bob"的行
dataname <- ifelse(dataname == "Bob", NA, data$name)

print(data)

  id     name
1  1    Alice
2  2     <NA>
3  3  Charlie
4  4    David
5  5      Eve