round up a number to 10^4
Bert, How do you define "elementary"? And, do we play this like "Name That Tune"? "Bert, I can do that calculation in X operations." Or, maybe like Jeopardy, "What is the number X?" Or maybe we could play "Are You Smarter Than a Seventh-Grader?" I'm just asking. Dan Daniel J. Nordlund Washington State Department of Social and Health Services Planning, Performance, and Accountability Research and Data Analysis Division Olympia, WA 98504-5204
-----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r- project.org] On Behalf Of Bert Gunter Sent: Tuesday, November 01, 2011 1:13 PM To: David Winsemius Cc: r-help at r-project.org; Wendy Subject: Re: [R] round up a number to 10^4 Yes, I agree with David that this looks like an error. However, for fun, one might ask: what is the fewest number of R elementary math operations that would produce such a result -- this might be good for clever 6th or 7th graders, for example. For here, I leave this as an exercise for the reader. -- Bert On Tue, Nov 1, 2011 at 12:42 PM, David Winsemius <dwinsemius at comcast.net>wrote:
On Nov 1, 2011, at 1:07 PM, Wendy wrote: Hi all,
I have a list of numbers, e.g., X = c(60593.23, 71631.17, 75320.1),
and
want to round them so the output is Y = c(60000, 80000, 80000).
Under what notion of "rounding" would that be the result? I tried
Y<-round(X,-4), but it gives me Y = c(60000, 70000, 80000). Do
anybody
know how to round up a number to 10^4? Thank you in advance.
-- David Winsemius, MD Heritage Laboratories West Hartford, CT
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-- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb- biostatistics/pdb-ncb-home.htm [[alternative HTML version deleted]]
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting- guide.html and provide commented, minimal, self-contained, reproducible code.