[R] X-axis labels in histograms drawn by the "truehist" function

[Ravi Varadhan]

Thank you, Marc and Gabor.  I apologize for having missed Gabor's reply.

Best regards,
Ravi.

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Ravi Varadhan, Ph.D.

Assistant Professor, The Center on Aging and Health

Division of Geriatric Medicine and Gerontology 

Johns Hopkins University

Ph: (410) 502-2619

Fax: (410) 614-9625

Email: rvaradhan at jhmi.edu

Webpage:  http://www.jhsph.edu/agingandhealth/People/Faculty/Varadhan.html

 

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-----Original Message-----
From: Marc Schwartz (via MN) [mailto:mschwartz at mn.rr.com] 
Sent: Monday, October 02, 2006 3:25 PM
To: Ravi Varadhan
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] X-axis labels in histograms drawn by the "truehist"
function

On Mon, 2006-10-02 at 14:58 -0400, Ravi Varadhan wrote:
>  
> Hi,
> 
>  
> 
> I had sent this email last week, but received no reply.  So, I am
resending
> it - please excuse me for the redundant email.
> 
>  
> 
> I have a simple problem that I would appreciate getting some tips.  I am
> using the "truehist" function within an "apply" call to plot multiple
> histograms.  I can't figure out how to get truehist to use the column
names
> of the matrix as the labels for the x-axis of the histograms.  
> 
>  
> 
> Here is a simple example:
> 
>  
> 
> library(MASS)  # this contains the truehist function
> 
> X <- matrix(runif(4000),ncol=4)
> 
> colnames(X) <- c("X1","X2","X3","X4")
> 
> par(mfrow=c(2,2))
> 
> apply(X, 2, function(x)truehist(x))
> 
>  
> 
> In this example, I would like the x-labels of the histograms to be "X1",
> "X2", etc.
> 
>  
> 
> Any help is appreciated.
> 
>  
> 
> Best,
> 
> Ravi

Ravi,

Gabor did reply:

https://stat.ethz.ch/pipermail/r-help/2006-September/114019.html

HTH,

Marc Schwartz