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I have a simple density function below:
dpower <- function(x, b, r){ if ((b <= 0 | r <= 0)) return("Wrong parameters entered!") else{ density.temp <- (r/b)*(x/b)^(r - 1) density.temp[which(x >= b | x <= 0)] <- NA return(density.temp) } } This function returns density corresponding to value x from the specified distribution with parameters b and r. I'd like to set the default value on x that if the user doesn't specify x, the default values passes through. We can simply set dpower <- function(x = x.default, b, r)... however, my default value depends on r and b. How can I do that? suppose the default value for x is:
seq(from = 0.05, to = b, by = 0.001) Thanks for your help,
424
Default values indicate that the function argument will take that value if no argument value is passed during the function call. The default value is assigned by using the assignment(=) operator of the form keywordname=value.
Function arguments can have default values in Python. We can provide a default value to an argument by using the assignment operator (=). Here is an example.
We can also use a function as a default value. Functions are first-class citizens in JavaScript and can be treated like any other variable. We can set a default value by evaluating a function and using the value returned.
dpower <- function(b, r, x = seq(from = 0.05, to = b, by = 0.001)) .... You can set the value of X to NULL and have one of the first lines of your function be
if(is.null(x)) x <- seq(from = 0.05, to = b, by = 0.001) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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