Colleagues,
I have encountered behavior of random number generation that eludes me.
I generate a random integer in a particular range using the following
code:
sample(1000:9999, size=1)
This code exists within a script that starts with the command:
remove(list=ls())
Each time that I run the script, it yields the same random number:
6420.
I thought that the problem might result from deleting the random
seed. However, list=ls() does not include .RandomSeed.
To my surprise, I can't replicate the problem with a 2-line script:
remove(list-ls())
sample(1000:9999, size=1)
Also, the same problem occurs if I use runif instead of sample.
Thoughts?
Dennis
Dennis Fisher MD
P < (The "P Less Than" Company)
Phone: 1-866-PLessThan (1-866-753-7784)
Fax: 1-415-564-2220
www.PLessThan.com
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