Created
June 15, 2012 00:34
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Dealing with missing values in R
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| n <- 100 | |
| x <- runif(n) | |
| y <- 5*x | |
| missing <- runif(n) > .80 | |
| df <- data.frame(y = y, x = x, missing = missing) | |
| df$x[missing] <- mean(df$x[!missing]) | |
| df$y[!df$missing] <- df$y[!df$missing] + .80 | |
| m <- lm(y ~ x + missing, data = df) | |
| summary(m) |
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