0/0, R segfaults
On 18 August 2005 at 16:01, Xing Qiu wrote:
| 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, but R should give a warning, an error msg or NaN | instead of segmentation fault. | | I am using R 2.1.0 under Gentoo Linux. My GCC version is 3.3.5. edd at basebud:~> R R : Copyright 2005, The R Foundation for Statistical Computing Version 2.1.1 (2005-06-20), ISBN 3-900051-07-0 R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for a HTML browser interface to help. Type 'q()' to quit R.
0/0
[1] NaN
No problem on Debian 'testing' with R 2.1.1. You may want to try a different libc. Dirk
Statistics: The (futile) attempt to offer certainty about uncertainty.
-- Roger Koenker, 'Dictionary of Received Ideas of Statistics'