Displaying 2 results from an estimated 2 matches for "grandtot".
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gradtol
2009 Mar 27
1
add variable in for loop
Hi,
I'm learning to write some basic functions in R. For some data I have I'd
like to be able to add a variable to itself after each iteration in a for
loop to obtain a grandtotal for that variable so I can calculate a mean.
test<-function(data){
for (i in 1:80){
meanrotation<-(abs(data[i,3]-data[i,2])+abs(data[i,4]-data[i,2])+abs(data[i,5]-data[i,2])+abs(data[i,6]-data[i,2]))/4
cat(i,meanrotation,"\n")
#total+=meanrotation
}
#print (total/80)
}
In...
2012 Oct 26
3
summation sign
Hi all,
I have a very quick question on how to use the summation sign in R for the
function.
Here?s a basic example: the function is sum(i=1 to 5)log(1-xi^2)
Id be grateful if someone knows how to do this without writing it out 5
times - I am looking sth along the lines of the following:
computeR <- function(x)
{
return (-sum(log(1-x^2))
}^
thank you vm in advance!
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