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4 results for “from:Xing Qiu”

0/0, R segfaults
Xing Qiu · Aug 18, 2005 · r-help

Hi, I noticed that when I was conducting some calculation involving finding correlation coeficients, R stopped abnormally. So I did some research, and find out that 0/0 was the culprit. For sure 0/0 is not a valid expression...

How do I break a foreach loop?
Xing Qiu · May 3, 2011 · r-help

Hi, I've noticed that the usual "break", "next" commands do not work in a foreach loop, is there a nice way to do that? A little more detail: I am using foreach to conduct a very time consuming (may...

0/0, R segfaults
Xing Qiu · Aug 19, 2005 · r-help

Thank you very much, I did try your simple C program and it works without any problem. I even tried some more sophisticated examples, and they all print out nan instead of a segfault. My computer has a Pentium 4...

0/0, R segfaults
Xing Qiu · Aug 19, 2005 · r-help

I just found out that I can do: x <- 0/0 in my R without any problem, it is only when I was trying to print the value of x by simply type x and return, R crashed with a...

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