R help - Jun 2012 - how to make a histogram with percentage on top of each bar?

I have a dataset like the following:
ID	DV
1	0.868576818
2	0.337120116
3	0.029233775
4	0.719783525
5	0.976631182
6	0.672941605
7	0.13239462
8	0.99936475
9	0.91540604
10	0.545686514

to get a histogram with y axis as percentage, I wrote the following code"
library(lattice)
histogram(data)

now , how to input the percentage and cumulative percentage on top of each
bar?

thanks,

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HI,


Probably this link will be useful to you
(http://stackoverflow.com/questions/9317948/how-to-label-histogram-bars-with-data-values-or-percents-in-r).

A.K>





----- Original Message -----
From: york8866 <yu_york at hotmail.com>
To: r-help at r-project.org
Cc: 
Sent: Thursday, June 21, 2012 1:26 PM
Subject: [R] how to make a histogram with percentage on top of each bar?

I have a dataset like the following:
ID??? DV
1??? 0.868576818
2??? 0.337120116
3??? 0.029233775
4??? 0.719783525
5??? 0.976631182
6??? 0.672941605
7??? 0.13239462
8??? 0.99936475
9??? 0.91540604
10??? 0.545686514

to get a histogram with y axis as percentage, I wrote the following code"
library(lattice)
histogram(data)

now , how to input the percentage and cumulative percentage on top of each
bar?

thanks,

--
View this message in context:
http://r.789695.n4.nabble.com/how-to-make-a-histogram-with-percentage-on-top-of-each-bar-tp4634131.html
Sent from the R help mailing list archive at Nabble.com.

______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

On Thu, Jun 21, 2012 at 10:56 PM, york8866 <yu_york at hotmail.com>
wrote:
> I have a dataset like the following:
> ID ? ? ?DV
> 1 ? ? ? 0.868576818
> 2 ? ? ? 0.337120116
> 3 ? ? ? 0.029233775
> 4 ? ? ? 0.719783525
> 5 ? ? ? 0.976631182
> 6 ? ? ? 0.672941605
> 7 ? ? ? 0.13239462
> 8 ? ? ? 0.99936475
> 9 ? ? ? 0.91540604
> 10 ? ? ?0.545686514
>
> to get a histogram with y axis as percentage, I wrote the following
code"
> library(lattice)
> histogram(data)
>
> now , how to input the percentage and cumulative percentage on top of each
> bar?
You will need a custom panel function, along the lines of

mypanel <-
    function(x, breaks, nint = round(log2(length(x)) + 1), ...)
{
    if (missing(breaks))
        breaks <- do.breaks(range(x, finite = TRUE), nint)
    panel.histogram(x, breaks = breaks, ...)
    h <- hist(x, breaks = breaks, plot = FALSE)
    breaks <- h$breaks
    nb <- length(breaks)
    yy <- 100 * h$counts / length(x)
    panel.text(x = (breaks[-1] + breaks[-nb])/2, y = yy,
               labels = round(cumsum(yy), 2), pos = 3)
}

histogram(data, panel = mypanel)

-Deepayan

On 06/22/2012 03:26 AM, york8866 wrote:
> I have a dataset like the following:
> ID	DV
> 1	0.868576818
> 2	0.337120116
> 3	0.029233775
> 4	0.719783525
> 5	0.976631182
> 6	0.672941605
> 7	0.13239462
> 8	0.99936475
> 9	0.91540604
> 10	0.545686514
>
> to get a histogram with y axis as percentage, I wrote the following
code"
> library(lattice)
> histogram(data)
>
> now , how to input the percentage and cumulative percentage on top of each
> bar?
>
Hi york8866,
There is a new function in the plotrix package, "barlabels" that will 
probably do what you want. Look for version 3.4-2, which should be 
available in a few days.

Jim

Thank you all for the help,

York

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