histogram help

An embedded and charset-unspecified text was scrubbed...
Name: not available
URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20121121/31e80752/attachment.pl>
i think we need some sample data.  

I would not have thought that you could calculate the percentage of a categorical data so perhaps a simple example of what you are doing would help.

John Kane
Kingston ON Canada
-----Original Message-----
From: rosario.scandurra at gmail.com
Sent: Wed, 21 Nov 2012 19:15:53 +0100
To: r-help at r-project.org
Subject: [R] histogram help

Hi,

I want to generate an histogram and plot on the y axis the percentage of
a
categorical variable and on the x axis a nominal variable. I want to move
the origin to have 2 categories below 0. Hope somebody could help me.
Thanks.

Best,
--
Rosario Ivano Scandurra

	[[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.
____________________________________________________________
FREE ONLINE PHOTOSHARING - Share your photos online with your friends and family!
Visit http://www.inbox.com/photosharing to find out more!
Hi,

I want to generate an histogram and plot on the y axis the percentage of a
categorical variable and on the x axis a nominal variable. I want to move
the origin to have 2 categories below 0. Hope somebody could help me.
Thanks.

Hi Rosario,
If you already have your percentages, the barplot function will display 
them like most people expect an histogram to look by setting space=0. 
See the "names.arg" argument to have the names of your nominal variables 
on the x axis. I'm not sure exactly what you mean by wanting 2 
categories below 0. If these are negative percentages, the barplot 
function will automatically handle them.

Jim