[R] object 'xxx' not found

Daniel Malter daniel at umd.edu
Tue Feb 9 00:51:19 CET 2010


The for loop tries to write into an object that does not yet exist. Do
month.observed=NULL prior to the loop.

HTH,
Daniel

-------------------------
cuncta stricte discussurus
-------------------------
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of emorway
Sent: Monday, February 08, 2010 6:38 PM
To: r-help at r-project.org
Subject: [R] object 'xxx' not found


The following line of code seems fairly straight forward, yet it is kicking
back an error message:
for (i in
1:length(mean.natveg.frac)){month.observed[i]=as.numeric(names(mean.natveg.f
rac[i]))%%12}

Error message:

Error in month.observed[i] = as numeric(names(mean.natveg.frac[i]))%%12 :
object 'month.observed' not found

Seems like its not found because I'm trying to define it.  Also
length(mean.natveg.frac) = 103


Eric
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