On Mar 14, 2011, at 12:25 PM, Andreas Emanuelsson wrote:
Hi everyone, I have problems with a double for loop and the program
response: "Error in 1:mass[j] : NA/NaN argument"
I'm trying to create a very simple script to generate a vector full
of objects with the value [fuel] and in the amount [mass] for a hist
plot.
H=1
for (j in 1:63)
{for (i in 1:mass[j])
{ H[length(H)+1]=fuel[j]}
}
What does the error mean?(where do I find explanations for such
issues?
You seem to need to read up on basic R programming. That would appear
to be an assignment task for which an indexed solution would be much
more appropriate. It is really rather bizarre to walk along a vector
(as you do for `mass`) without doing anything in the function body
with the index.
H <- vector(64, "numeric")
H[2:64] <- fuel[1:63]
Why does not a simple for loop work?
Error in 1:mass[j] : NA/NaN argument
It appears that for some value between 1 and 63, a value for mass[j]
is missing. Without a better description of the data (specifically
`mass`), not much more can be said.
Thank you very much for your time if you can help me!
/Andreas
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