makePNG

panelFn

file

width, height, res

origWidth

the base point size to use (for png <code>pointsize</code> argument)

basePointSize

lims

pixel ratio of screen to which plot will be rendered (e.g. 2 for a retina display)

pixelratio


Make a png for a subset of an object of class "ddo" or "ddf".  The user should never need to call this directly, but the viewer needs it, so it is exported with this documentation.


An extension of Trellis Display that enables creation,
organization, and interactive viewing of multi-panel displays created
against potentially very large data sets.  The dynamic viewer tiles
panels of a display across the screen in a web browser and allows the
user to interactively page through the panels and sort and filter them
based on "cognostic" metrics computed for each panel.  Panels can be
created using many of R's plotting capabilities, including base R
graphics, 'lattice', 'ggplot2', and many 'htmlwidgets'.  Conditioning is
handled through the 'datadr' package, which enables 'Trelliscope' displays
with potentially millions of panels to be created against terabytes of
data on systems like 'Hadoop'.  While designed to scale, 'Trelliscope'
displays can also be very useful for small data sets.

makePNG: Make a png for a Subset

Description

Usage

Arguments

See Also

Examples