[R] Trellis Plots: translating lattice xyplot() to ggplot()

[Roy Mendelssohn - NOAA Federal]

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
> 
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Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
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