potential r bug (floor)
Why is this a bug? If you take apply floor to a number that you expect to be exactly 3, but compute it on a binary computer via logs to base e, you must expect some rounding error. BTW, on my Windows XP machine I do get
floor(log10(1000))
[1] 3 There is no bug in R, but your usage of it is potentially dangerous. You might want to ensure your R is up-to-date: version 1.7.1 is current.
On Mon, 23 Jun 2003, Alexander Pasman wrote:
Hi, I noticed the following bug while using R version 1.7.0 for Windows (and Linux):
floor(log10(1000))
[1] 2
Here are my start-up messages:
R : Copyright 2003, The R Development Core Team
Version 1.7.0 (2003-04-16)
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.
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.
[Previously saved workspace restored]
`tseries' version: 0.9-11
`tseries' is a package for time series analysis
and computational finance.
See `library (help=tseries)' for details.
Attaching package 'tseries':
The following object(s) are masked from package:chron :
is.weekend
Hope this helps. Let me know if you need additional information.
Alexander Pasman
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