OK but how to generalize so that the max of y would cover for all subsets of b?
because 50:70 was just an example, so consider other subsets (known or unknow
in advance) whose density will be plotted on the histogram.
But since b is the full set, why it doesn't contain the max of y for all
subsets?
thanks
--- On Tue, 4/28/09, Uwe Ligges <lig...@statistik.tu-dortmund.de> wrote:
From: Uwe Ligges <lig...@statistik.tu-dortmund.de>
Subject: Re: [R] truehist and density plots
To: "carol white" <wht_...@yahoo.com>
Cc: r-h...@stat.math.ethz.ch
Date: Tuesday, April 28, 2009, 6:16 AM
carol white wrote:
> Consider a vector of 100 elements (attached files). then,
> truehist(b)
> lines(density(b[20:50]))
>
> How is it possible to have density plots of all subsets like b[20:50]
within histogram (without exceeding the max of historgram on y axis)?
>
> Is it more clear?
Yes, example:
# ignore the first plot:
truehist(b)
yl <- par("usr")[4]
d <- density(b[20:50])
truehist(b, ylim=c(0, max(yl, d$y)))
lines(d)
Uwe Ligges
>
> Best,
>
> --- On Tue, 4/28/09, Uwe Ligges <lig...@statistik.tu-dortmund.de>
wrote:
> From: Uwe Ligges <lig...@statistik.tu-dortmund.de>
> Subject: Re: [R] truehist and density plots
> To: "carol white" <wht_...@yahoo.com>
> Cc: r-h...@stat.math.ethz.ch
> Date: Tuesday, April 28, 2009, 5:42 AM
>
>
> carol white wrote:
>> Hi,
>> I wanted to plot the histogram of a vector and then, plot the density
> function of subsets of the vector on the histogram. So I use truehist in
MASS
> package and lines(density) as follows:
>> length(b) = 1000
>> truehist(b)
>> lines(density(b[1:100]))
>
>
> I do not undertsand what you mean. Can you please provide a *reproducible*
> example?
>
> Uwe Ligges
>
>
>> however the density plot of the first 100 points exceeds the max of y
axis
> (see attached). how is it possible to make a graphics so that the density
plot
> of the subsets doesn't go beyond the maximum of all points in the
complete
> set?
>> Cheers,
>>
>> Carol
>>
>>
>>
>>
>>
>>
>>
>>
------------------------------------------------------------------------
>>
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>> 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.
>
>
>
>
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