R help - Jul 2015 - Trellis Plots: translating lattice xyplot() to ggplot()

Hadley's ggplot2 book is quite old and a new version is in the works, but
not yet out. I've been using lattice graphics but the knitr package
doesn't
support lattice, only basic plots and ggplot2. My Web searches for Trellis
plots in ggplot2 equivalent to those in lattice have not been productive.

   I would appreciate a pointer to a resource that would teach me how to
translate from lattice xyplot() to ggplot2 ggplot().

   This is one such plot needing translation:

xyplot(value ~ sampdate | variable, data=carlin.1.melt, rm.na = T)

Rich

Don?t know for certain but might this help:

http://journal.r-project.org/archive/2015-1/murrell.pdf

From the latest issue of R Journal.  

Abstract The gridGraphics package provides a function, grid.echo(), that can be
used to convert a plot drawn with the graphics package to a visually identical
plot drawn using grid. This conversion provides access to a variety of grid
tools for making customisations and additions to the plot that are not possible
with the graphics package.

-Roy
> On Jul 10, 2015, at 2:09 PM, Rich Shepard <rshepard at
appl-ecosys.com> wrote:
> 
>  Hadley's ggplot2 book is quite old and a new version is in the works,
but
> not yet out. I've been using lattice graphics but the knitr package
doesn't
> support lattice, only basic plots and ggplot2. My Web searches for Trellis
> plots in ggplot2 equivalent to those in lattice have not been productive.
> 
>  I would appreciate a pointer to a resource that would teach me how to
> translate from lattice xyplot() to ggplot2 ggplot().
> 
>  This is one such plot needing translation:
> 
> xyplot(value ~ sampdate | variable, data=carlin.1.melt, rm.na = T)
> 
> Rich
> 
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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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On Fri, 10 Jul 2015, Roy Mendelssohn - NOAA Federal wrote:
> Don?t know for certain but might this help:
> http://journal.r-project.org/archive/2015-1/murrell.pdf
> From the latest issue of R Journal.
Roy,

   Thanks. I'll certainly read that article.

Carpe weekend,

Rich

On Fri, 10 Jul 2015, Roy Mendelssohn - NOAA Federal wrote:
> Don?t know for certain but might this help:
   It's very interesting, but does not appear to resolve the immediate need
to write the R code in a knitr chunk for incorporation into the compiled LyX
document.

   The gridGraphics package description notes that both lattice and ggplot2
are built on the grid framework, and the new gridGraphics package will
'echo' either to a grid format for further tweaking. Unless the knitr
package will accept the echoed image ...

   It does not. Here is what the compiled document shows (the R code is
included in the document):

pdf('carlin-1-description.pdf')
xyplot(value ~ sampdate | variable, data=carlin.1.melt, rm.na = T)
require(gridGraphics)

## Loading required package:  gridGraphics
## Loading required package:  grid

grid.echo()

## Error in grid.echo.recordedplot(recordPlot(), newpage, prefix): No
## graphics to replay

dev.off()

Rich

Have you tried explicitly print()ing the lattice graphics in your knitr doc?

Hadley

On Friday, July 10, 2015, Rich Shepard <rshepard at appl-ecosys.com>
wrote:
>   Hadley's ggplot2 book is quite old and a new version is in the works,
but
> not yet out. I've been using lattice graphics but the knitr package
doesn't
> support lattice, only basic plots and ggplot2. My Web searches for Trellis
> plots in ggplot2 equivalent to those in lattice have not been productive.
>
>   I would appreciate a pointer to a resource that would teach me how to
> translate from lattice xyplot() to ggplot2 ggplot().
>
>   This is one such plot needing translation:
>
> xyplot(value ~ sampdate | variable, data=carlin.1.melt, rm.na = T)
>
> Rich
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>

-- 
http://had.co.nz/

	[[alternative HTML version deleted]]

On Fri, 10 Jul 2015, Hadley Wickham wrote:
> Have you tried explicitly print()ing the lattice graphics in your knitr
> doc?
Hadley,

   Only now. Had not thought of trying this before.

pdf('carlin-1-descriptive.pdf')
print(xyplot(value ~ sampdate | variable, data=carlin.1.melt, rm.na = T))

No error messages, but no graphic, either. Without specifying the pdf
device, TeX complains it cannot find a graphics device and lists bit-mapped,
ps and svg devices.

   Most likely I do not have the correct syntax.

Thanks,

Rich

I don't actually use lattice very much, but I have no difficulty setting up
a lattice plot in a knitr/rmarkdown file, and can think of no reason why you
might have concluded that knitr does not support lattice.

Sorry, not going to translate your non-reproducible example... please go the
extra little effort to dput some example data so we can communicate clearly
about your problem. [1]

[1]
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example
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On July 10, 2015 2:09:45 PM PDT, Rich Shepard <rshepard at
appl-ecosys.com> wrote:
>Hadley's ggplot2 book is quite old and a new version is in the works,
>but
>not yet out. I've been using lattice graphics but the knitr package
>doesn't
>support lattice, only basic plots and ggplot2. My Web searches for
>Trellis
>plots in ggplot2 equivalent to those in lattice have not been
>productive.
>
>  I would appreciate a pointer to a resource that would teach me how to
>translate from lattice xyplot() to ggplot2 ggplot().
>
>   This is one such plot needing translation:
>
>xyplot(value ~ sampdate | variable, data=carlin.1.melt, rm.na = T)
>
>Rich
>
>______________________________________________
>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>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.