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

Roy Mendelssohn - NOAA Federal
2015-07-10T21:16:20Z

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
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NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
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