R help - Dec 2006 - Help with histograms

I would like to make one histogram combining two value vectors. One vector has
more than 50 entries and the other only has 16. Both vectors contain dates in
the POSIXct format. I need to be able to highlight the 16 entries from the
smaller data set.

Is it possible to do this with the hist function? Which function should I use?

Sloan

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If you look at the help for the tkBrush function in the TeachingDemos package,
the examples show the definition of a function called colhist.  That function
may do what you want.

Hope this helps,

-----Original Message-----
From: r-help-bounces@stat.math.ethz.ch on behalf of sloan jones
Sent: Wed 12/27/2006 2:49 PM
To: r-help@stat.math.ethz.ch
Subject: [R] Help with histograms
 

I would like to make one histogram combining two value vectors. One vector has
more than 50 entries and the other only has 16. Both vectors contain dates in
the POSIXct format. I need to be able to highlight the 16 entries from the
smaller data set.

Is it possible to do this with the hist function? Which function should I use?

Sloan

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Download Opera 9 at http://www.opera.com

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The iPlots package provides interactive graphics.  One way to to what  
you want to do would be to create a variable with all values and a  
second binary variable recording which are the 16 special cases.   
Draw an interactive histogram of the first with ihist and an  
interactive barchart of the second with ibar.  Then click on the bar  
for the 16 special cases.

Antony