try_either: Try and catch_either.

In hmito/hmRLib: Helper library for numerical analysis with R

Try and catch_either.

Description

Try and catch_either.

Usage

try_either(expr, alt_value, catchfn = NULL, silent = TRUE)

Arguments

expr	Function which should be executed.
alt_value	return value when expr throw exception.
catchfn	Function which will be called when expr throw exception with error message as argument.
silent	Logical value: if TRUE, the error message is not shown.

Examples

f = function(i){
   if(i<0)stop("negative value")
   return(i)
}
x = try_either(f(3),NULL)
#x == 3
a = try_either(f(-1),NULL)
#a == NULL
b = try_either(f(-1),0)
#b == 0

hmito/hmRLib documentation built on Sept. 8, 2024, 4:49 p.m.