Sergii Khomenko lc0
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| agecount <- function(age = NULL) { | |
| if (is.null(age)){ | |
| stop("age couldn't be NULL") | |
| } | |
| homicides <- readLines("homicides.txt") | |
| r <- regexec("(\\d+) years old", homicides) | |
| m <- regmatches(homicides, r) | |
| causes <- sapply(m, function(x) as.integer(x[2])) | |
| return(length(which(causes==age))) |
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