[R] histogram fill lattice

[Powell, Jeff]

Thank you for your response, I will try to be clearer.  I would like to fill my lattice histogram bars using a symbol rather than a color.  If that is not possible, then I will use hist() instead.

>From trellis.par.get()
bar.fill only includes "col", so perhaps I'm out of luck?

With regards,
Jeff

-----Original Message-----
From: David Winsemius [mailto:dwinsemius at comcast.net] 
Sent: woensdag 13 juni 2012 16:40
To: Powell, Jeff
Cc: R-help at r-project.org
Subject: Re: [R] histogram fill lattice


On Jun 13, 2012, at 9:55 AM, Powell, Jeff wrote:

>
> Dear all,
>
> I would like to change the "fill" pattern of a histogram using
> histogram() in the lattice package.  I know how to do so using hist(), 
> but would prefer to stay within lattice.
>
> dt1 <- rnorm(100,0,1)
>
> hist(dt1, density=3, angle=45)
>

I get diagonal striping.

>
> library(lattice)
> histogram(dt1,
>               xlab = "Histogram of rnorm(0,1)",
>               type = "count",
>               breaks = 15,
>               col = "grey")

I seem to remember that the diagonal hatched fills were disabled or not brought over to lattice from base S graphics because they were thought to be causing cognitive distortions[1,2]. You already seem to be able to specify the color of the fill, and it's easy to get alternating colored fills with col = c("grey","red") ,  so it's not entirely clear what your unsatisfied goals are.

--
David Winsemius, MD
West Hartford, CT

1] http://markmail.org/message/pmrrpjynrcnrwhg5?q=list:org%2Er-project%2Er-help+lattice+hatching
2] http://markmail.org/message/cj23tnsgsobs4mbu?q=list:org%2Er-project%2Er-help+lattice+hatching