From: Frank Harrell <f.harrell_at_vanderbilt.edu>

Date: Sun, 27 Mar 2011 10:20:02 -0700 (PDT)

Frank Harrell

Department of Biostatistics, Vanderbilt University

Date: Sun, 27 Mar 2011 10:20:02 -0700 (PDT)

If by 35 (10%) you mean that 35 is the numerator, this is not such a good idea. That's because it emphasizes something that is not a scientific quantity. A scientific quantity is something that has a meaning outside the current sample. The numerator is dependent on the denominator.

Regarding the other formatting issue, summary.formula with method='reverse'
is not flexible enough to allow that.

Frank

Kwok, Heemun wrote:

*>
*

> Hello,

*> I am using Hmisc summary.formula, latex and Sweave to produce tables for
**> publication. Is it possible to change the formats for binary and
**> continuous variables? I would prefer to show 35 (10%) and 1.5 (1.2-1.8)
**> rather than 10% (35) and 1.2 / 1.5 / 1.8. Here is a simple example:
**>
**> sex <- factor(sample(c("m","f"), 500, rep=TRUE))
**> age <- rnorm(500, 50, 5)
**> treatment <- factor(sample(c("Drug","Placebo"),
**> 500, rep=TRUE))
**>
**> s1 <- summary(~sex + age)
**> s2 <- summary(treatment ~ sex + age, method="reverse")
**> print(s1); print(s2)
**>
**> Descriptive Statistics (N=500)
**>
**> +-------+-----------------+
**> | | |
**> +-------+-----------------+
**> |sex : m| 46% (232) |
**> +-------+-----------------+
**> |age |47.22/50.31/53.37|
**> +-------+-----------------+
**>
**>
**>
**> Descriptive Statistics by treatment
**>
**> +-------+-----------------+-----------------+
**> | |Drug |Placebo |
**> | |(N=257) |(N=243) |
**> +-------+-----------------+-----------------+
**> |sex : m| 47% (122) | 45% (110) |
**> +-------+-----------------+-----------------+
**> |age |47.35/50.00/52.68|46.78/50.92/53.97|
**> +-------+-----------------+-----------------+
**>
**> Thanks,
**> Heemun
**>
**>
**> -------------------------------------------------
**> Heemun Kwok, M.D.
**> Research Fellow
**> Harbor-UCLA Department of Emergency Medicine
**> 1000 West Carson Street, Box 21
**> Torrance, CA 90509-2910
**> office 310-222-3501, fax 310-212-6101
**>
**> ______________________________________________
**> 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.
**>
*

Frank Harrell

Department of Biostatistics, Vanderbilt University

-- View this message in context: http://r.789695.n4.nabble.com/Hmisc-summary-formula-formats-for-binary-and-continuous-variables-tp3408967p3409563.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.Received on Sun 27 Mar 2011 - 17:22:54 GMT

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