pv.bar: Add a bar to the visualization.

In webvis: Create graphics for the web from R.

Description

Add a bar to the visualization.

Usage

pv.bar(height.name="y", left.name="x", height.scale="linear.y.y", left.scale="linear.x.x", bottom=0, width, width.name, xmax, scale.min=0, ...)

Arguments

height.name	The name of the field in the supplied data frame or vector.
left.name	The name of the field in the supplied data frame or vector.
height.scale	The scale of the field in the supplied data frame or vector.
left.scale	The scale of the field in the supplied data frame or vector.
bottom	The bottom of the bar, with respect to the panel.
width	The width of each bar.
width.name	The name of the field in the data for the width.
xmax	The max scale for the x-axis.
scale.min	The minimum y-value for scaling.
...	The parameters from pv.chart

Details

pv.bar Adds a bar plot to the visualization

Value

A wv object.

Author(s)

Shane Conway [e-mail]

References

http://vis.stanford.edu/protovis/

See Also

pv.chart that creates the webvis object.

Examples

plot.webvis(x=c(1, 2, 1.5, 3, 1.2), type="bar", scale.min=0)
pv.bar(data=c(1, 1.2, 1.7, 1.5, .7, .5, .2), height.name="y", left.name="x", height.scale="linear.y.y", left.scale="linear.x.x", bottom=0, width=25, render=TRUE)

pv.bar(data=c(1, 1.2, 1.7, 1.5, .7, .5, .2), width=20, render=TRUE)
pv.bar(data=data.frame(z=c(1, 1.2, 1.7, 1.5, .7, .5, .2)), height.name="z", height.scale="linear.z.y", width=20, render=TRUE)
pv.bar(data=c(1, 1.2, 1.7, 1.5, .7, .5, .2), height.name="y", left.name="x", height.scale=NULL, left.scale="linear.x.x", render=TRUE)

# bar example 1 
wv <- pv.panel(width=150, height=150)
render.webvis(wv + pv.bar(wv=wv, data=c(1, 1.2, 1.7, 1.5, .7), height.name="y", left.name="x", height.scale="linear.y.y", left.scale="linear.x.x"))

# bar example 2 (doesn't work properly)
d <- data.frame(y=c(1, 1.2, 1.7, 1.5, .7), z=c(0, 0.5, 0.9, 0.2, 0.7))
d <- cbind(d, k=d$y-d$z)
wv <- pv.panel(width=150, height=150)
render.webvis(wv + pv.bar(wv=wv, data=d, height=20, height.name=NULL, bottom=NULL, bottom.name="x", width=NULL, width.name="k", left.name="z", left.scale="linear.z.y", bottom.scale="linear.x.x", width.scale="linear.k.x"))

# bar example 3
wv <- pv.panel(width=150, height=150)
render.webvis(wv + pv.bar(wv=wv, data=c(1, 1.2, 1.7, 1.5, .7), height.name="y", left.name="x", bottom=NULL, top=0, height.scale="linear.y.y", left.scale="linear.x.x"))

webvis documentation built on May 30, 2017, 12:46 a.m.