Created
June 21, 2016 09:20
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psum function
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| x <- c(NA, 5:1) | |
| y <- c(5:1, NA) | |
| psum <- function(x, y){ | |
| x[is.na(x)] <- 0 | |
| y[is.na(y)] <- 0 | |
| x + y | |
| } | |
| psum(x, y) |
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