If I understand your question
properly, then you are looking
for 'try' or 'tryCatch'. There
is an example of using these on
page 89 of 'The R Inferno'.
On 23/12/2010 04:13, Bogaso Christofer wrote:
Dear friends, hope I could be able to explain my problem through following
example. Please consider this:
set.seed(1)
input<- rnorm(10)
input
[1] -0.6264538 0.1836433 -0.8356286 1.5952808 0.3295078 -0.8204684
0.4874291 0.7383247 0.5757814 -0.3053884
tag<- vector(length=10)
for(i in 1:10)
# if there is any ****error**** in evaluating "log(input[i])" (or
evaluating some function) then tag[i] = 1, otherwise tag[i] = 0
Therefore my "tag" vector should like: tag[1]=1, tag[2]=0, tag[3]=1,
tag[4]=0, tag[5]=0.......
Actually R returns logarithm of a negative number as NaN, however in this
example please consider R returns error when it encounters logarithm of a
negative number.
Is there any way to do above task?
Thanks and regards,
[[alternative HTML version deleted]]
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Patrick Burns
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