Hello,
Just learning the alphabet? If yes, there's a difference between 'v' and
'a'.
Now more seriously. Your description and your loop don't do the same.
Description:
vm <- scalar * v * seq_along(v)
Loop:
a <- scalar * a
Also, seq_along is the way to do it, it works even if length(a) == 0.
Hope this helps,
Rui Barradas
Em 04-06-2012 21:25, Erdal Karaca escreveu:
(Just learning R)
I have this vector:
v<- c(1:10)
Now, I want to multiply each element of that vector with a scalar value
multiplied with its index:
vm<- v * scalar * indexOfCurrentElementOf_v
Is that possible without using a loop?
In a loop I would do this:
for (i in 1:length(a)) a[i]<- scalar * a[i]
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