Hi all,
I am having trouble assigning a value within a vector using a variable
defined within a function. I suspect this has something to do with
namespaces but I cannot figure it out. Please reply directly to me if you
can help.
###begin code
#simple vector
test<-c(4,5,6)
#simple function to get a value from a vector
#works just like I would expect, has no problem indexing using the local
function variable name "index"
getvalue<-function(index){
print(test[index])
}
getvalue(2)
#another simple function to update the value in a vector
update<-function(index){
test[index]<- 20
}
update(2)
test
#The update() function silently fails to accomplish the update
###
I don't understand why the function has no problem accessing the value, but
cannot accomplish the assignment. I need to be able to update vectors using
index values which I pass from within a function.
Thanks for your help.
Andrew Barr
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