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12 lines
354 B
R
12 lines
354 B
R
age <- c(6, 14, 12, 10)
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name <- c("Audree", "Andy", "Rose", "Andrew")
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gender <- c("female", "male", "female", "male")
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info <- data.frame(age, name, gender)
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print(info[3, 2])
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print(info[2:3, ])
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info <- info[-c(1), ]
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print(info[7 < info[, 1] & info[, 1] < 13])
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info[2, 1] <- 8
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print(summary(info))
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info$gender <- as.factor(info$gender)
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print(summary(info)) |