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| pdf <- function(a, b, cuantil, pdf) { | |
| # To convert pmf to a function | |
| pdf <- gsub(" ", "", pdf) | |
| pdf <- substr(pdf, start=6, stop=nchar(pdf)) | |
| pdf <- paste(pdf, ' * x^0') | |
| fun <- function(x) eval(parse(text=pdf)) | |
| prob <- integrate(fun, lower=a, upper=cuantil)$value | |
| area <- integrate(fun, lower=a, upper=b)$value | |
| list(prob=prob, area=area, fun=fun) | |
| } | |