R-如何将多个数据帧中的某些行设置为子集

# 创建多个数据框
df1 <- data.frame(ID = 1:5, Name = c("Alice", "Bob", "Charlie", "David", "Eve"))
df2 <- data.frame(ID = 6:10, Name = c("Frank", "Grace", "Henry", "Ivy", "Jack"))

# 将df1中ID为奇数的行设置为子集
subset_df1 <- subset(df1, ID %% 2 == 1)

# 将df2中Name以字母"G"开头的行设置为子集
subset_df2 <- subset(df2, grepl("^G", Name))

# 创建多个数据框
df1 <- data.frame(ID = 1:5, Name = c("Alice", "Bob", "Charlie", "David", "Eve"))
df2 <- data.frame(ID = 6:10, Name = c("Frank", "Grace", "Henry", "Ivy", "Jack"))

# 将df1中ID为奇数且Name以字母"C"开头的行设置为子集
subset_df1 <- df1[df1$ID %% 2 == 1 & grepl("^C", df1$Name), ]

# 将df2中ID为偶数或Name以字母"I"开头的行设置为子集
subset_df2 <- df2[df2$ID %% 2 == 0 | grepl("^I", df2$Name), ]

# 安装和加载dplyr包
install.packages("dplyr")
library(dplyr)

# 创建多个数据框
df1 <- data.frame(ID = 1:5, Name = c("Alice", "Bob", "Charlie", "David", "Eve"))
df2 <- data.frame(ID = 6:10, Name = c("Frank", "Grace", "Henry", "Ivy", "Jack"))

# 将df1中ID为奇数的行设置为子集
subset_df1 <- df1 %>% filter(ID %% 2 == 1)

# 将df2中Name以字母"G"开头的行设置为子集
subset_df2 <- df2 %>% filter(grepl("^G", Name))